2000 is a lot…
What Google account did you use to create it? If you give us permission, we can take a look.
From your Gallery link, your app suffers from these ailments …
- rubber stamping where parametrized procedures could reduce block count by 90%
- looping with text to speech instead of using a Clock Timer
- opening Screen1 from another screen
- failure to use lists for sequencing
- assigning a color block into a .text attribute
Here are some resources to help you learn to use the AI2 tools A very good way to learn App Inventor is to read the free Inventor’s Manual here in the AI2 free online eBook http://www.appinventor.org/book2 … the links are at the bottom of the Web page. The book ‘teaches’ users how to program with AI2 blocks.
There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro and the aia files for the projects in the book are here: http://www.appinventor.org/bookFiles
How to do a lot of basic things with App Inventor are described here: http://www.appinventor.org/content/howDoYou/eventHandling .