treasure hunt gps with app inventor

[redsun]

Hello, 
this is a little demo App I generated with App Inventor. It is suitable for treasure hunt using GPS, especially with children.
So far only one stage is proposed. Here you should take a photo from an environment where you can imagine a frog, like a fountain,, pond, or similar.

Then save your picture (save button) and Hopper will tell you (next button)  where his secret treasure is located. (Could be an geocaching box.)

You can limit / expand  the range of the "right" gps positon with the max- and min- values.

For more stages add screens where you can create little quests.

Feel free to use and expand this App.

Download link for the aia file:

http://fame-challenge.com/medien/adv_03.aia

[Hal Abelson]

redsun,

Very nice idea.   MIT will be launching a new App Inventor community gallery in a few weeks.   Perhaps you could submit this to the gallery.
Watch for the announcement.