This app was mentioned in 1 comment, with an average of 1.00 upvote
Name: UnlockFood
Website: www.unlockfood.com
Location: Austin, TX
Description: UnlockFood places a small banner on the top of the user's lock screen which generates advertising revenue every time the user unlocks their phone. That money is then used to feed hungry people all over the world.
1 min video: https://www.youtube.com/watch?v=3SJ-oqLXQ9U
More details: Single founder with outside investment.
Android app is available here https://play.google.com/store/apps/details?id=com.unlockfood.unlockfood&hl=en
Looking for: Feedback and media attention