Spix

The principle is simple.
Every day Spix offers you new challenges. Each time, you have a certain time to find the requested item and take a picture of it. The faster you complete the challenge, the more points you get. Collect as many points as you can and exchange them for the gift card of your choice (Amazon, Google Play, App Store).

Combos : Complete consecutive challenges and improve your combo score and your ranking

Jokers :
Unable to find out what's being asked for? Use jokers to complete the challenges without taking pictures and still earn the points.

Friends :
Add your friends and follow their progress. Who's the best Spixer in the group?

Spix is completely free. No purchase necessary.