Background music mixer android jobs

I need someone proficient in C# to help create a Remote Administration Tool (RAT). This tool will primarily offer remote desktop access. A user-friendly graphical user interface (GUI) is a must, with a clear and clean design that's simple to navigate. It should be tailored specifically for a Windows operating system. Ideal Skills: - Strong background in C# - Experience in creating GUI - Expertise in remote desktop functionalities Experience: - Developing RATs - Working with Windows OS - Designing intuitive GUIs

Seeking a skilled and experienced developer to execute an AI-based Android app meant to perform tasks such as image classification and face recognition. An integral requirement for this role is proficiency in the integration of JNI C++ libraries. The foundations of the project include: - Development of an app compatible with Android phones - Integration and enhancement of machine learning algorithms into the app - The app must process object detection & tracking tasks using machine learning The ideal candidate should have: - Prior experience in Android app development - Strong knowledge of machine learning - Proficiency in the integration of JNI C++ libraries Integral to success in this project is a developer's ability to balance technical machine-learni...

...or be integrated with the text. This could be a stylized version of a B or something that symbolizes beauty and youth. The logo should not only resonate with our direct customers but also be appealing enough to work in collaborative contexts, such as co-branded products or social media graphics. Deliverables: Logo in multiple formats (JPEG, PNG, SVG, and a vector file) Logo on a transparent background Black and white version Brand color palette with exact color codes Usage guidelines document detailing the typography, color codes, and proper use of the logo. Ensure all deliverables are suitable for both web and print use. Usage Rights: The final logo design will be fully owned by Brillisima. We require complete transfer of all intellectual property rights associated with the lo...

I am looking for a skilled professional to design a compac...capable of capturing both images and video footage to ensure we can thoroughly analyze the welds. As stated, the camera should be able to operate on either battery power or a plug-in power supply, making it versatile and accessible for our team. The successful candidate for this project should have experience in designing and developing camera systems, particularly for industrial applications. A background in mechanical engineering, electrical engineering, or a related field would be highly beneficial. The ability to deliver a compact, high-performance camera system within a designated timeframe will be key to the success of this project. I look forward to hearing from talented professionals who can help bring this visio...

...animators; we are in need of your groundbreaking skills in 3D animation to produce engaging videos for our brand promotion. We aim to target teenagers primarily so the videos must resonate with their interests, likes and behaviors. - The essence of the project is to focus heavily on brand awareness. We aim to imprint our brand in the minds of our young audience through compelling stories, colors, and music that they'll relate to. Skills & Experience: - Proven ability in 3D animation with no less than 3 years of experience - Previous experience in creating animations for teenagers - Outstanding storytelling capability that can draw the audience's attention - A creative outlook that will bring our brand to life, inspiring young audiences We are excited to see how ...

...a variety of digital marketing channels, including but not limited to social media, email marketing, and SEO - Continuously monitor and analyze the performance of the sales funnels and marketing campaigns - Generate actionable insights and make data-driven decisions to optimize the results Ideal Skills: - Proven experience in digital marketing, specifically with B2C target audiences - Strong background in creating, implementing, and optimizing sales funnels - Proficiency in popular digital marketing channels, including social media, email marketing, and SEO - Data-driven mindset with the ability to analyze and interpret key metrics - Excellent communication skills to effectively convey marketing strategies and results If you're a digital marketing expert with a knack for o...

I require a freelancer skilled in motion graphics to create an engaging and vibrant logo animation. The animation duration should fall between 5 and 10 seconds, making it ideal for my promotional videos. It's crucial for the designer to realize a balance between visibility and excitement while maintaining brand integrity throughout the animation process. I...visibility and excitement while maintaining brand integrity throughout the animation process. Ideal Skills and Experience: - Experienced in Motion Graphics - Portfolio of previous Logo Animation Work - Knowledge in Creating Promotional Video Content - Strong Understanding of Branding and Logo Design I attached my current logo animation that I created. It doesn't have to be like this nor use this music. I also atta...

I'm looking for help in enhancing the security of our project, particularly through the modification of /phpmyadmin routes. Key Requirements: - Security Enhancement: I'm looking to change specific routes in /phpmyadmin to boost the overall security of our project. - Exper...routing within this platform. - Security-Focused: A strong understanding of security principles, particularly when it comes to web application security, would be highly beneficial. - Communication: Clear communication skills are essential, as you may need to explain changes to the team and ensure everyone understands the new routing structure. This project is ideal for a freelancer with a strong background in phpMyAdmin and a focus on security enhancements. Please apply if you believe you have the ...

I am seeking an experienced Android developer who can create a bespoke application tailored to specific needs. The following points detail the required functionalities: - The core functionality of the app revolves around Auto Start. It should enable users to select applications of their choice that will force run or auto-start upon device boot. An intuitive user interface for this selection process will be a valued feature. - Additionally, the app needs to support both portrait and landscape screen orientations. Flexibility in switching between the two, without any glitches, is paramount. - Prior experience in developing such system apps that play with Android's core settings would be highly advantageous. Undoubtedly, precision, compatibility, and user-friendliness should b...

...platform, specifically for our company. The app should be compatible with both Android and iOS, in addition to a Laravel website which uses the same admin panel. Requirements: - Develop a hybrid app for Android, iOS, and Laravel website - Enable user registration and login - Implement a job posting feature - Integrate real-time notifications Key Points: - The app should have a seamless user experience across all platforms. - You have the creative freedom to suggest the design as I don't have specific requirements. - The app's functionality should be consistent and smooth, especially for job posting and user interaction. Skills and Experience: - Proven expertise in hybrid app development - Strong background in Android, iOS, and Laravel - Previous...

I'm looking for a passionate, experienced co-founder with a diversely skilled design background to join me in building a strong brand in the Health and Wellness sector. Key Responsibilities: - Incorporating bold, vibrant and modern design elements into our brand identity - Contributing your expertise in graphic, UI and web design to create an engaging online presence - Co-developing and managing the brand's visual identity and ensuring consistency across all channels Ideal Candidate: - Extensive experience in graphic design, UI design, and web design - Proven track record in designing for modern and minimalistic brands - Previous experience in the Health and Wellness industry is a plus, but not mandatory - Strong brand management skills If you're a creative thinker...

I need a proficient Matlab Simulink professional to simulate the current production in a semi-truck's solid oxide fuel cell. This should take into account multiple variables, specifically: - Temperature - Pressure - Fuel flow rate The...account multiple variables, specifically: - Temperature - Pressure - Fuel flow rate These should be varied at high levels in the simulation. With a requirement for medium precision, the model should sufficiently represent the real-world scenario without too much granularity. The goal is to understand how these variables affect the current production. The ideal candidate should have a strong background in thermodynamics, system simulations, and Matlab Simulink. Experience in solid oxide fuel cells and vehicular simulations would be a signifi...

I'm looking for a seasoned video editor to help create thrilling, less than one minute, adventure-themed travel videos for Ins...seasoned video editor to help create thrilling, less than one minute, adventure-themed travel videos for Instagram. Editing needs are basic - clipping, trimming, merging footage. The finalized video should feel exciting, embodying the spirit of adventure. Requirements: - Experiences in video editing, specifically in basic edits - Ability to convey an adventurous tone through video editing - Background in editing short Instagram videos is a major plus - Quick turnaround time expected. Your ability to capture the essence of exploration in a short, under a minute clip is highly desired. You're the right fit if you have a knack for storytelling t...

I'm seeking a finance specialist with experience in recapitalization efforts. Key tasks for this project include: - **Valuation Analysis**: I nee...Investment Analysis**: A comprehensive ROI analysis is necessary to evaluate the potential outcome of the recapitalization effort. I have all the relevant financial data in hand, so the focus will be on the calculations and recommendations based on this data. The primary goal of this recapitalization effort is to restructure the company. The perfect candidate for this project should possess a solid background in finance, with experience in financial analysis, valuation, and restructuring. Clear and concise communication skills are a must, as the ability to explain complex financial concepts in an understandable way is crucial fo...

I am seeking a competent scriptwriter and researcher who is knowledgeable about Indian history, culture, and other interesting global topics such as space, disasters, current events, world affairs, and environment. Ideal skills include: - Strong command of Hindi language - Proven expertise in scriptwriting - Skilled in researching and Sourcing. - Background in YouTube content creation is a plus. Freelancers who apply should provide the following: - Evidence of past work (preferably related to Indian content) - A written sample using a topic that I will provide. The right candidate should be able to create engaging scripts that are well-researched and accurate, yet easily comprehensible to the average viewer. Do you have the passion and the skills to help bring unexplored t...

I'm in need of an expert who can help in developing a relational database using SQL and Python. The project will primarily revolve ...database management. Consequently, I would appreciate assistance in the following tasks: - Designing a new relational database, ensuring it's optimized for efficiency and performance. - Implementing data import and export capabilities for seamless data movement. - Developing queries to support the database's functionality and ease of use. The ideal candidate for this project should have a strong background in both SQL and Python, with a specific focus on database development. Experience with optimizing databases for performance and some knowledge of data import/export mechanisms would be advantageous. Moreover, an understanding of rel...

I need some Android developer for some easy tasks I need work at low budget I need coder from Pakistan or India

I'm on the hunt for a skilled content creator to develop a well-articulated white paper centered on SAP digital transformation in the technology sector. This paper should be designed as a compelling pitch for our potential customers. Specifics: - Thorough investigation and presentation of SAP digital transformation in the technology sphere. - Firm comprehension of the impact ...clients, hence the white paper should be persuasive yet informative. Ideal Skills: - Extensive knowledge and experience in technology field, particularly SAP digital transformation. - Stellar research and content creation skills. - Ability to make complex technical concepts easy to understand. - Excellent writing skills with previous white paper authoring experience. - Sales or marketing writing background...

...I want to use my video projector to put in the background a boss that I have to defeat, people should have to give me gifts so I can defeat it, I'm looking for a skilled Android developer to create a simple but interactive final boss health bar app for my phone (I already know how to mirror my phone on the projector) . This health bar should decrease in size by 1pt, with 5000pts as the initial starting value. The bar should be responsive to either my voice or simply recognise the value of the gift I receive on tiktok live or to clicks/taps, (ideally the interaction have to be with my voice or recognise the gift value on tiktok live but if not possible it can be clicks or taps on the screen). The app should have a soldier image in the background, which I envisio...

...relations and team management. Key Features: - Scheduling Surveys: The system should support date availability checks, scheduling and booking confirmation via WhatsApp to our staff. Their responses should organise them into yes and no groups. This will help us automate repetitive tasks and sharing of information to groups of people. - CRM Management: I am an agent to film ans supply extras for background. This requires searching for certain character features of our staff. For example brown hair, 5"4 female. of male 6'2 blonde. I then send a availability check to work on certain dates and if they agree i send their profile to the production for approval. The approved staff then get added to a whatsapp "mailing list to communicate with as a group but each person r...

I require a skilled content writer to create engaging, informative articles focusing on the areas of Intellectual Property and Contract Law. - Your primary task will be crafting articles on legal documents. These articles should provide a layman's explanation of the legal jargo...jargon and terms found within these documents. - These articles are not only intended to inform but also to assist in improving search engine rankings and driving audience engagement. - Your writing should be clear, easy to understand and compelling. You should be capable of breaking down complex legal terms into digestible content. Ideal skills and experience: - Strong legal content writing background. - Understanding of Intellectual Property and Contract Law. - SEO knowledge and experience in writi...

Hello, i need to remove prefectly the background and improve quality: colors, lights, proportion to make all 4 pcis looks beautiful... Max 12€

I need a mature American male voiceover artist & music for an explainer video - Ideal candidate should possess a Senior (50+ years) voice - Previous experience in radio voiceovers is a must Similar style to storyboard/script and blocked video Similar style to another just completed

...document to another platform. Here's what you should know: - You'll be handling purely text content. No images or URLs to worry about. - The text content is technical in nature-detailed and specific. What skills and experience should you have? - Excellent attention to detail: The content's technical nature means there's no room for errors. - Familiarity with handling technical content: A background in technical writing or similar is a plus, but not strictly required. - Proficiency in English: While you won't be creating content, reading and understanding the technical text is vital. - Prompt communication: I like to stay updated, so prompt responses to any queries I may have are essential. This is a straightforward task that should be both fast and e...

I'm in need of a skilled scriptwriter who can craft a compelling Spanish script for a 2-minute educational corporate video. The aim of this video is to educate professionals and companies about a specific topic. Ideal skills would include: - Native Spanish proficiency - Strong background in scriptwriting - Experience in creating educational content - Understanding of corporate communication - Ability to write engaging and informative content - Familiarity with video scripts and voice-over requirements Your script should be: - Succinct yet informative - Able to convey complex ideas in an accessible way - Appropriate for a professional audience Please share any relevant experience and provide a sample of your work if possible.

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As an enthusiastic employer passionate about the health and wellness sector, I am looking for a skilled and experienced writer to create engaging blog articles aimed at improving customer experience and enhancing branding. Your primary fo...high-quality blog content on health and wellness. - Strategically incorporating keywords to increase sales and traffic on our website. The perfect bidder should possess: - Excellent researching abilities. - Stellar writing and editing skills with a knack for storytelling. - Understanding of SEO and digital content strategies. - Proficiency in English language and grammar. - A keen interest or background in 'health and wellness' content would be beneficial. The goal is to captivate our audience, increase our brand visibility and, ulti...

...product and people (model) shots. I require support for ongoing campaigns and am seeking an expert in this field. Specific Photo Editing Services (photoshop, lightroom) - Background removal: Ensuring product images have a clean, professional look - Color correction: Adjusting tones and hues to accurately represent the product - Image retouching: Enhancing product images to make them appealing for online shoppers Volume & Turnaround: - I anticipate less than 100 photos to be edited per month - The expected turnaround time for the edited photos should be around 1 week Ideal Skills & Experience: - Proficiency in background removal, color correction, and image retouching - Previous experience with product and e-commerce photo editing - Capability to manage around 1...

...standards are being met, in order to ensure that there is no possibility of cheating at any stage. The exam content and result are irrelevant to this exercise. You will need to be observant and discreet in order to undertake this visit. You need to remain in the test centre and complete the exam as if you were a genuine entrant. We have full guidance notes to assist you, which give a very clear background of the environment. The actions that you need to take are actions that test takers attempt, so do not be worried about carrying them out. After the visit there is a report to complete, it is not lengthy but you need to explain what you did and what were the staff responses. The visit lasts one and a half hours. Your payment is $90 per visit. Note that you will need a valid, ph...

I'm looking for an expert to deliver a hands-on training on how to use a Digital Sound Board. I'm a beginner and my goal is to learn how to manipulate sound controls effectively....Digital Sound Board offers - Translate technical jargon into a simple, understandable language - Provide real-time feedback and clarification on my methods - Have exceptional patience and communication skills - Set up the sound -Set up the microphones for correct sound. -This is a church setting Ideally, the freelancer should have: - Extensive experience with Digital Sound Boards - A strong background in training or education - Exceptional communication and patience - A flexible schedule that can accommodate mine Through your training, I hope to gain confident control of my Digital Sound Boar...

I'm in need of a professional who can help me source Shiitake mushrooms specifically for agricultural and research purposes. Key Responsibilities: - Source high-quality Shiitake mushrooms for agricultural and research use - Ensure the mushrooms meet industry standards and are suitable for research...transportation and quality assurance Ideal Skills: - Extensive experience in product sourcing, particularly in the agricultural or research industry - Knowledge of the mushroom industry, with a focus on Shiitake mushrooms - Strong attention to detail and quality control - Excellent communication and negotiation skills - Understanding of the logistical aspects of sourcing products If you have a background in agricultural research or product sourcing, especially with mushrooms, pl...

I'm searching for an experienced video editor who can help me enhance my raw footage into captivating music videos with a cinematic touch. Key Responsibilities: - Edit raw footage and create high-quality, engaging music videos - Implement cinematic editing style - Apply color grading to enhance the final video Ideal Skills and Experience: - Proven experience in editing music videos - Proficiency in cinematic editing style - Strong understanding of color grading - Excellent eye for detail to ensure high-quality output

I am looking for a skilled rotoscoper to help me remove a person from an entire MOV video. The task entails: - Removing the person throughout the video without replacing the background. - Maintaining lossless quality throughout your work - Delivering lossless quality Ideal freelancer would have excellent attention to detail, proficiency in rotoscoping, and a record of maintaining high video quality. Previous experience with similar projects is a plus. The videos will be delivered in ProRes 422 HQ and should be delivered in the same format with no degradation whatsoever. 9 videos totaling 41-42 seconds.

I'm in need of a skilled UIZARD expert, preferably based in Mumbai, for developing a mobile application. My aim is to have this pro...In-app purchases - Push notifications The app itself will be a sophisticated blend of Airbnb and Facebook, with an extensive set of features. Therefore, I'm seeking a professional with a robust understanding of these two platforms, and the capacity to deliver a high-quality, user-friendly final product on both iOS and Android & a web-app. A potential candidate would be someone with: - Prior experience in developing complex mobile apps - Proficiency in UIZARD - A strong background in UI/UX design - A track record of meeting tight deadlines - Proximity to Mumbai (preferred) Please get in touch if you believe you have the right sk...

I'm in need of a professional who can analyze comprehensive survey data and present the results in a detailed, report that relates to each hypothesis for my thesis research. The analysis is expected to be done using Exc...the attached excel document) - cleaned data a separate tab (provided for you attached excel document) - your statistical analyses on other separate tabs a Word doc or PDF with... - insights and findings based on the data clearly written and explained (be sure to include each hypothesis) (hypotheses provided in the attached word document) Ideal candidate for this job should: - Have a strong background in statistical analysis, particularly in descriptive statistics. - Be able to write clear, concise and informative reports. - Be able to work efficiently and d...

More details: What platforms do you want the app to be developed for? Android, Both Will the app require user authentication? Not sure Which functionalities do you want for your web portal? User management, Real-time updates

I'm seeking a talented graphic designer to create a hierarchy diagram for a document. The document design will be an integral part of my project and must be executed with precision. Work Required: - Create a visually engaging hierarchy diagram Ideal Skills: - Graphic design background with a focus on hierarchy diagrams and document design - Keen attention to detail - Ability to translate complex ideas into comprehensible visuals Experience: - Extensive experience in creating diagrams for professional documents will be preferred. Please include a sample of previous work in your proposal. This project requires a blending of technical accuracy and creative skills. If you have a good understanding of hierarchy diagrams and you're proficient in designing documents, th...

I am offering source codes for 26 unique Android games ready for purchase. Having developed these games, I can guarantee their quality and potential. Potential buyers, such as a budding game developer or a gaming company, would find this extremely beneficial. Ideal Skills and Experience: * Familiarity with Android Game Development * Profit-oriented mindset * Interest in code acquisition * Game re-skinning capabilities would be a plus Since I missed out on detailing game categories and project timeline, I'm open to discuss these and more at the prospective buyer's convenience.

Budget Tracker: Develop an app to help users manage their finances by tracking income, expenses, and savings goals. Include features like expense categorization, budgeting tools, and customizable reports.

I'm in need of an experienced PHP developer to significantly enhance and upgrade my existing PHP script. The scope of work involves: - Adding new functionalities: Specifically, I am seeking to integrate payment gateway and app, as well as implement a subscription wallet and automated payments system. A background in financial integration technologies is preferred. - Modifying existing features: Notably, the user profile management feature and data management & reporting functionality need revisions. Experience in generating robust user interfaces and crafting intuitive data management systems will be key. Prospective freelancers should have demonstrated experience with PHP, user interface creation and data management tools. Proven skills in payment gateway and app integ...

...provider based in the UK, specializing in professional development and educational services. Our goal is to double our turnover in the next 12 months. Learn more about us at https://debrastevens.co.uk. Project Objective: We are seeking a digital marketing agency that can partner with us on an ongoing basis to enhance our online presence and drive significant growth. The agency should have a strong background in SEO, PPC, content creation, and overall digital marketing strategy tailored to the training and development sector. Scope of Services Required: • SEO and Backlinking: Improve our search engine rankings and online visibility through effective SEO practices and quality backlink generation. • Content Creation: Develop engaging content that resonates with our ta...

...or Photoshop work. I have approximately 80 photos which need use of Photoshop and/orLightroom and a tools such as imagen-ai. This includes mostly subject mask work along with some color correcting and Light Dark correcting with some skin tone retouching. there is also a need for limited cropping some straightening. Most of the images need subject mask work, the person is too dark against the background. please also check if the skin tone needs to be made to look natural due to LED lights. two examples are in the post. Images must be delivered in similar size and quality of original images. In ultra high quality JPG format. please have results to deliver in 5 days or less. I will only use freelancer and will not communicate off of this platform - do not ask otherwise. Please ask ...

I'm looking for an experienced Android developer to create a tablet version of my product catalog app. Key Features: - Offline Functionality: The app should be able to work without an internet connection, allowing users to access product information at all times. - Tablet-Optimized UI: The UI should be designed to provide an amazing experience on tablet screens, making use of the extra real estate and ensuring smooth navigation. - Multi-language Support: The app should support multiple languages, allowing users from different regions to easily understand and interact with the catalog. Ideal Skills: - Proficient in Android development, particularly for tablets - Experience with implementing offline functionality in Android apps - Strong UI/UX design skills, espe...

I'm seeking a skilled developer to set up Apple In-App Purchase functionality within two of my business-focused applications. The ultimate aim of these applications is to allow users to purchase online radio codes. Key tasks: - Implementing Apple In-App Purchase in both apps - Configuring the apps...- Configuring the apps in my Apple Developer Console to take them live - Expertly integrating payment gateways for seamless radio code purchases Ideal Candidate: The perfect candidate will possess: - Proven experience in integrating Apple In-App Purchase into business apps - Expertise in payment gateway integration - A strong understanding of Apple Developer Console setup and operation - A background in business app creation, ideally with a focus on selling digital products li...

I'm in need of a seasoned mathematician with specialized expertise in probability and statistics. Your role will involve undertaking a statistical data analysis project. Ideal Skills & Experience: - Strong background in probability and statistics - Proficiency in analyzing statistical data - Excellent problem-solving skills - Attention to detail - Prior experience in similar projects. Your keen grasp of the financial/accounting & mathematical principles involved in probability. You have only 1 question to answer, that's the project.

I'm seeking a versatile writer capable of producing content across a wide range of writing styles for a technology-focused project. The primary goal of the writing will be to create educational content. Key Requirements: - Proficiency in creative writing, copywriting, and technical writing. - Strong background in technology and the ability to simplify complex topics for educational purposes. - Experience in developing content for educational purposes, focusing on clarity and engagement. Ideal Skills: - Excellent writing skills with a diverse portfolio across different formats. - Knowledgeable in technology trends and capable of writing for a broad audience. - Familiarity with SEO principles to enhance content visibility. - Project management skills to ensure timely content de...

...(minimalist, cartoon, realistic, etc.) - Proficient in modern design tools - Has an eye for detail and design aesthetics - Can effectively translate concepts into visual design - Prior experience in creating designs for websites is a bonus Graphics need to convey the feeling that this blogsite is: - professional (no clipart for example) - classy but discreet (so for example the website uses a black background) - erotic provoking, saucy, naughty and playful I need to design the look and feel for the following page types: 1. Landing page 2. Individual Blog Article pages 3. Erotic stories 4. Product Review pages I want the look and feel to have a British look and feel to it i.e. include the union jack image and the colours. So, I think I am after an illustrator that can create e...

I'm on the hunt for a thoroughly detailed editor experienced in children's non-fiction books, specifically science themed. The target audience for these books is middle grade readers, ages 8-12. Skills and Experiences: - Experience in editing children's non-fiction literature, particularly those themed on science - Proven background in handling content for middle grade readers - Understanding of the complexity and readability appropriate for the 8-12 age group - Proficiency in spotting factual inaccuracies, grammatical errors, and areas needing improvement in text intended for children's understanding. Your task will be to enhance the quality of the content to captivate and educate middle grade readers in an age-appropriate manner. Strong familiarity with scie...

I'm in need of high-quality, informative written content for my documentation. This project demands the expertise of individuals with a solid background in producing accurate and engaging text for various types of documentation. Your main responsibility will include: - Creating informative and compelling written material - Constructing content that fits the style and tone of the documentation - Maintaining high-standard language and formatting Skills & Experience: - Exceptional skills in producing written content - Proven experience in documentation creation - Excellent command over English language - Attention to detail and commitment to quality.

I'm seeking an experienced developer to convert my existing Laravel website into a mobile app with a web view. Key Requirements: - Create a mobile app that mirrors the functionality of my current website - Integrate a web view that is compatible with both iOS and Android devices - The mobile app should have a responsive design that adapts well to different screen sizes - Ensure that the app is user-friendly and optimised for mobile use Note: - Please showcase your past work, especially in creating web views for existing websites. - Knowledge of Laravel is a plus, but not mandatory. The main goal of this project is to increase my website's accessibility by having a mobile app version. Please provide a portfolio of your past work, particularly in mobile app development...