# IMPOSSIBLE RIDDLES CHALLENGE vs Braino

The clearest difference is in-app purchases: IMPOSSIBLE RIDDLES CHALLENGE at none against Braino's 5. IMPOSSIBLE RIDDLES CHALLENGE also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Braino sells 5 one-off in-app purchases. IMPOSSIBLE RIDDLES CHALLENGE asks for nothing beyond the download.

IMPOSSIBLE RIDDLES CHALLENGE ships an update monthly, Braino every 3 weeks. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | IMPOSSIBLE RIDDLES CHALLENGE | Braino |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 88 MB | 43 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NGUYEN DUC HIEU](https://appshunter.io/developer/762617890) | [Metin Acun](https://appshunter.io/developer/1854488248) |

## What reviewers say

### IMPOSSIBLE RIDDLES CHALLENGE

[App page](https://appshunter.io/ios/app/impossible-riddles-challenge/id6478904975)

**Features:** macOS Compatibility

**In-app purchases:** none


### Braino

[App page](https://appshunter.io/ios/app/braino-brain-training-games/id6757126307)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Diamonds | $0.79 | one-time |
| 150 Diamonds | $1.99 | one-time |
| 350 Diamonds | $3.99 | one-time |
| 800 Diamonds | $7.99 | one-time |
| Lifetime VIP | $9.99 | one-time |


## Frequently asked questions

### Is IMPOSSIBLE RIDDLES CHALLENGE free?

IMPOSSIBLE RIDDLES CHALLENGE is free to download, with no in-app purchases.

### Is Braino free?

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

### Do IMPOSSIBLE RIDDLES CHALLENGE or Braino have ads?

Braino shows ads; IMPOSSIBLE RIDDLES CHALLENGE does not.

### Which is updated more often, IMPOSSIBLE RIDDLES CHALLENGE or Braino?

IMPOSSIBLE RIDDLES CHALLENGE ships an update monthly, and Braino every 3 weeks. Most recently, IMPOSSIBLE RIDDLES CHALLENGE was updated on October 1, 2026 and Braino on October 8, 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.*