# Stack 21

> Stack 21 (iPhone/iPad app by Doleman Enterprises.)

- Source: https://appshunter.io/ios/app/stack-21/id6819406129 (this page in markdown: same URL + `.md`)
- Developer: [Doleman Enterprises](https://appshunter.io/developer/1453418600)
- Category: Games, Education, Puzzle, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 3 MB
- Languages: American English
- Released: 2026-10-07
- Data updated: 2026-10-09

## What is Stack 21?

Stack 21 is a simple number-stacking puzzle game that’s easy to learn and surprisingly hard to put down.

Choose numbered tiles and build your stack toward 21. Hit exactly 21 to clear the stack and build your streak. Go over 21 and you take a strike. Three strikes ends the game.

Think ahead, watch the total, and see how high you can score.

• Simple, fast puzzle gameplay
• Streak bonuses for consecutive clears
• Local high-score tracking
• Works offline
• No account required
• No ads
• No in-app purchases
• No tracking

Your game progress and high score stay on your device.

Stack 21 is published by Doleman Enterprises LLC.

## Is Stack 21 safe?

Not enough ratings yet to assess Stack 21.

## Is Stack 21 legit?

Stack 21 has limited verification signals. The AppsHunter Legitimacy Score for Stack 21 is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-07

No release notes.

## Apps similar to Stack 21

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Brain Room - Block Push Puzzle](https://appshunter.io/ios/app/brain-room-block-push-puzzle/id1588265988) | 4.5 (58) | Free | Games |
| [Hole Busters 3D](https://appshunter.io/ios/app/hole-busters-3d/id6740718591) | 4.9 (17,424) | Free | Games |
| [Wood Nuts & Bolts Puzzle](https://appshunter.io/ios/app/wood-nuts-and-bolts-puzzle/id6472426288) | 4.5 (234,356) | Free | Games |

## More apps by Doleman Enterprises

- [Bible Mahjong: Scripture](https://appshunter.io/ios/app/bible-mahjong-scripture/id6819803552)

All apps by Doleman Enterprises: https://appshunter.io/developer/1453418600

## Related topics

[free 21](https://appshunter.io/ios/topics/free-21)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*