# Braino vs Challenge World

The clearest difference is ads: Challenge World at none against Braino's shown. Challenge World also leads on update cadence (every 5 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Braino sells 5 one-off in-app purchases and Challenge World sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Braino ships an update every 3 weeks, Challenge World every 5 days. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Braino | Challenge World |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 43 MB | 88 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Metin Acun](https://appshunter.io/developer/1854488248) | [Eric Martial Kameni](https://appshunter.io/developer/1893185746) |

## What reviewers say

### 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 |


### Challenge World

[App page](https://appshunter.io/ios/app/challenge-world/id6771152172)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synapse Tier | $0.99 | one-time |
| Cortex Tier | $0.99 | one-time |
| Nexus Tier | $0.99 | one-time |
| Zenith Tier | $0.99 | one-time |
| Apex Tier | $0.99 | one-time |
| Head-to-Head Mode | $0.99 | one-time |


## Frequently asked questions

### Is Braino free?

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

### Is Challenge World free?

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

### Do Braino or Challenge World have ads?

Braino shows ads; Challenge World does not.

### Which is updated more often, Braino or Challenge World?

Braino ships an update every 3 weeks, and Challenge World every 5 days. Most recently, Braino was updated on October 8, 2026 and Challenge World on October 4, 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.*