Bitcoin 21
Bitcoin 21 Summary
Bitcoin 21 is a free, ad-supported, with in-app purchases Android app in Card by Vweeter Limited. Released in Apr 2026 (5 months ago). It has about 1.4K+ installs Based on AppGoblin estimates, it reaches roughly 148 monthly active users and generates around $<10K monthly revenue (60% IAP / 40% ads). Store last updated May 3, 2026
Recent activity: 27 installs this week (143 over 4 weeks) showing declining growth View trends →
Bitcoin 21 SDKs Summary
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App Description
PvP Blackjack. Earn BTC.
Want to play blackjack 1 vs 1 with people from all over the world and earn Bitcoin at the same time?
- Every hour you will earn SATS (small amount of BTC) as long as you participate! The more the participants, the bigger the JACKPOT for that hour.
- No dealers! Only you and your new random friends.
- Take turns to place the cards on the crossword board.
Try to make the cards add up to 21 points just like normal blackjack.
But you can combine cards vertically or horizontally as long as the cards you place don't exceed 21 points per turn.
- Usual rules: Ace can be 1 or 11 , JQK are 10 points.
- You just gotta link them either in a straight line.
- Daily / Weekly leaderboards so you can compete with people all around the world.
- Chat room function for you to make new friends.