# Brain Puzzle 2 vs Onsen Stack

The clearest difference is chart position: Brain Puzzle 2 at #45 against Onsen Stack's unranked. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Brain Puzzle 2 ships an update monthly, Onsen Stack every 3 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Brain Puzzle 2 | Onsen Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18K ratings)](https://appshunter.io/ios/app/brain-puzzle-2-logic-twist/id6747063674/reviews)** | — |
| Number of ratings | **18K** | — |
| Positive reviews | 64.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Best chart rank | **#45** | — |
| Size | 346 MB | 182 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [SmallStep Dev Team](https://appshunter.io/developer/1473677344) | [SCM PUBLISHING](https://appshunter.io/developer/372943201) |

## What reviewers say

### Brain Puzzle 2

[App page](https://appshunter.io/ios/app/brain-puzzle-2-logic-twist/id6747063674)

**Currently charting:** #45 Top Free · Casual, #50 Top Free · Puzzle, #93 Top Free · Games (US App Store)

Engage in a humorous and imaginative puzzle-solving adventure with unconventional logic and unexpected twists. This sequel offers a richer experience with quirky plot lines and interactive elements, requiring creative thinking and wit to overcome bizarre challenges. Enjoy simple controls and unlimited hints to spark new ideas.

**Highlights:** Humorous storytelling, Brain-teasing design, Unconventional logic puzzles, Interactive elements, Simple tap and swipe controls, Unlimited hints, Absurd scenarios and trending jokes

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Relaxing gameplay
- 💡 Creative puzzles
- 🤩 Enjoyable experience

**What reviewers complain about**

- 🤖 Too many ads
- 🤔 Unclear puzzle instructions
- 🙄 Excessive fart/stink references

**Reported bugs**

- Sky diet stage bug
- Freezing on login screen

**Requested features**

- Bring back Chinese voice acting
- Add old music from previous version
- More BL (Boys' Love) content


### Onsen Stack

[App page](https://appshunter.io/ios/app/onsen-stack/id6804281103)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Brain Puzzle 2 free?

Brain Puzzle 2 is free to download, with no in-app purchases.

### Is Onsen Stack free?

Onsen Stack is free to download, with no in-app purchases.

### Do Brain Puzzle 2 or Onsen Stack have ads?

Both Brain Puzzle 2 and Onsen Stack show ads.

### Which is updated more often, Brain Puzzle 2 or Onsen Stack?

Brain Puzzle 2 ships an update monthly, and Onsen Stack every 3 weeks. Most recently, Brain Puzzle 2 was updated on November 3, 2026 and Onsen Stack on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*