# Math Riddles vs Challenge World

The clearest difference is ads: Challenge World at none against Math Riddles's shown. Challenge World also leads on update cadence (every 5 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Math Riddles sells 3 in-app purchases, starting at $3.99 per month and Challenge World sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Math Riddles ships an update every 6 weeks, Challenge World every 5 days. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Math Riddles | Challenge World |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/math-riddles-brain-games/id6449851642/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 42 MB | 88 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Huseyin Sahinli](https://appshunter.io/developer/1690196717) | [Eric Martial Kameni](https://appshunter.io/developer/1893185746) |

## What reviewers say

### Math Riddles

[App page](https://appshunter.io/ios/app/math-riddles-brain-games/id6449851642)

Engage in daily brain training with over 100 unique math riddles and logic puzzles. Improve your logic, reasoning, memory, and focus with challenges suitable for all ages. Track your progress and boost your IQ with this addictive brain gym.

**Highlights:** 100+ unique math riddles, Logic and reasoning puzzles, Mental math practice, Memory and focus enhancement, Progress tracking, Offline mode, Daily challenges

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium — Monthly | $3.99 | per month |
| Premium — Yearly | $9.99 | per year |
| Premium — Lifetime | $24.99 | 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 Math Riddles free?

Math Riddles 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 Math Riddles or Challenge World have ads?

Math Riddles shows ads; Challenge World does not.

### Which is updated more often, Math Riddles or Challenge World?

Math Riddles ships an update every 6 weeks, and Challenge World every 5 days. Most recently, Math Riddles was updated on October 5, 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.*