# Brain Riddle vs Tanggu Arithmetic Puzzle

The clearest difference is in-app purchases: Tanggu Arithmetic Puzzle at none against Brain Riddle's 15. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Brain Riddle sells 15 one-off in-app purchases. Tanggu Arithmetic Puzzle asks for nothing beyond the download.

Brain Riddle ships an update every 2 weeks, Tanggu Arithmetic Puzzle every 9 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Brain Riddle | Tanggu Arithmetic Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (14 ratings)](https://appshunter.io/ios/app/brain-riddle-tricky-box/id6757749388/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 606 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guru Future Holding Limited](https://appshunter.io/developer/1693569117) | [Sueah Choi](https://appshunter.io/developer/6802496010) |

## What reviewers say

### Brain Riddle

[App page](https://appshunter.io/ios/app/brain-riddle-tricky-box/id6757749388)

Engage in a mind-bending puzzle game where you must think unconventionally to solve tricky riddles and escape. Interact with a unique doodle sketch world filled with pranks and unexpected challenges. Hints are available if you get stuck.

**Highlights:** Tricky prank games, Creative doodle sketch art, Funny sounds and witty effects, Offline logic puzzles, Fun for all ages

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| First Purchase Special | $0.99 | one-time |
| Boxy's Colorful Gift Box | $1.99 | one-time |
| 5 Bulbs | $1.99 | one-time |
| Coin Pack 250 | $1.99 | one-time |
| Boxy's Wondrous Gift Box | $2.99 | one-time |
| Coin Pack 500 | $2.99 | one-time |
| Boxy's Lucky Gift Box | $3.99 | one-time |
| 20 Bulbs | $3.99 | one-time |
| Remove ads | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |
| No Ads Bundle | $4.99 | one-time |
| Coin Pack 1000 | $4.99 | one-time |
| No Ads Bundle (New) | $5.99 | one-time |
| Unlimited Bulbs | $9.99 | one-time |
| Coin Pack 2500 | $9.99 | one-time |


### Tanggu Arithmetic Puzzle

[App page](https://appshunter.io/ios/app/tanggu-arithmetic-puzzle/id6806772173)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain Riddle free?

Brain Riddle is free to download, with in-app purchases available.

### Is Tanggu Arithmetic Puzzle free?

Tanggu Arithmetic Puzzle is free to download, with no in-app purchases.

### Do Brain Riddle or Tanggu Arithmetic Puzzle have ads?

Both Brain Riddle and Tanggu Arithmetic Puzzle show ads.

### Which is updated more often, Brain Riddle or Tanggu Arithmetic Puzzle?

Brain Riddle ships an update every 2 weeks, and Tanggu Arithmetic Puzzle every 9 days. Most recently, Brain Riddle was updated on October 31, 2026 and Tanggu Arithmetic Puzzle on October 24, 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.*