[teolemon]

You might have a look at Open Food Facts (https://world.openfoodfacts.org and https://world.openfoodfacts.org/discover https://world.openfoodfacts.org/contribute ). Crowdsourced Wikipedia for food. We already have apps (Cordova) and we're doing efforts to redevelop in native on each platform (all is volunteer word).

We've long wanted to create a small game/gamification app to have people make more complex contributions than taking pictures.

pierre at openfoodfacts dot org

[Tacite]

^ this.

Helping OpenFoodFacts also helps a lot of apps and other non profits organization who use our database.