Brain Room vs Stack 21
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Brain Room
Engage your mind with a classic block-pushing puzzle game. The objective is to strategically move blocks to designated storage locations. Enjoy a simple yet challenging experience designed to test your logic and spatial reasoning skills.
- Block pushing mechanics
- Storage location objectives
- Logic and spatial reasoning challenges
- Classic puzzle gameplay
- Simple interface
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It is a puzzle game where you press a block and store it in a specified location.
Stack 21
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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.
Screenshots
Verdict
The clearest difference is ads: Stack 21 at none against Brain Room's shown. Brain Room's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Brain Room | Stack 21 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (58 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 58 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 81 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Hirokazu Uno | Doleman Enterprises |
In-app purchases
Brain Room
No in-app purchases
Stack 21
No in-app purchases
