All support
Boom 21 support
Help with Classic, FINAL 21 and Daily Deal, restarting after game over, saved runs, and sound, motion and language settings on iPhone and iPad.
Troubleshooting
Frequently asked questions
Tap one of the four columns to place the current card. The current card and the next three cards appear at the upper right. Aces count as 1; Jacks, Queens and Kings count as 10. An exact 21 clears the column immediately. Each column holds up to five cards.
Still stuck?
Contact us
Tell us your iPhone or iPad model, iOS or iPadOS version, Boom 21 version, game mode, and what happened just before the problem. Include the level and whether motion effects were enabled.