Android App

Dear Android programmer, I need 2 simple apps: 1 - An app that blinks a random 2 digit number on a screen and a "tunning button" that controls the time that the number will stay on the screen - 1/2 a second and down. Properties to calibrate how fast the number should appear again - or with a random time as well. 2 - An app that blinks an image (soccer ball or image that the user can select) on a random place on the screen and the user has to touch them. Before playing, an option screen will select: Name, time of the interval, the time it will stay on the screen and the duration of the test. If the users hits "play again", it will go back to the options screen. When the user clicks 'finish', an excel table will be generated and saved with the following information for all the games that the user played at this time : Name, Both speeds, Objects, Hits. Thanks.