I believe Netzero began the idea long time ago before Bitcoin's time, but not too passive as you have to click on ads to make a few pennies.
Here I shall list all apps/games that offers money, though I have not verified most of them and it's possible they maybe shutdown, so this list is rather dynamic:
- Mistplay
- PlayWell
- Daily Gift
- Just Play
- Kashkick
- Rewarded Play (This I have tried, gave Amazon gift card credits, but since I played their games oversea i.e. Malaysia, they locked my account and any phones that attempted with that account)
There are games (mostly quite boring actually) that are credit satoshi (smallest unit of Bitcoin) via crypto wallets such as ZBD app:
- Bitcoin Miner
- Idle Mine
- Blocks of Bitcoin