# IQ Challenge Book vs Math Riddles

The clearest difference is update cadence: Math Riddles at daily against IQ Challenge Book's every 76 months. Math Riddles also leads on ratings volume (4 vs 1) and iOS requirement (13.0 vs 15.0). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for IQ Challenge Book against 5.0 for Math Riddles. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

IQ Challenge Book ships an update every 76 months, Math Riddles daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | IQ Challenge Book | Math Riddles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/iq-challenge-book/id1320107027/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/math-riddles-iq-brain-boost/id6502156385/reviews) |
| Number of ratings | 1 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 76 months | **Daily** |
| Monetization | Free | Free |
| Size | 1 MB | 43 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adrian Minca](https://appshunter.io/developer/1224651577) | [Thiem Nguyen](https://appshunter.io/developer/1658699065) |

## What reviewers say

### IQ Challenge Book

[App page](https://appshunter.io/ios/app/iq-challenge-book/id1320107027)

Assess your intelligence level with this application that provides an IQ score based on your answers to a series of questions. It categorizes your score according to a standard IQ scale, ranging from genius to feeble-mindedness. Test your limits and discover your intelligence quotient.

**Highlights:** IQ score determination, Intelligence level assessment, IQ score categorization, Test your limits, User-friendly interface

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

**In-app purchases:** none


### Math Riddles

[App page](https://appshunter.io/ios/app/math-riddles-iq-brain-boost/id6502156385)

Engage in a brain workout with over 40 unique math-based riddles and observation puzzles. Improve your memory, focus, and problem-solving skills with this captivating game. Play anytime, anywhere, with multiple difficulty levels for an intriguing mental journey.

**Highlights:** 40+ unique math riddles, Observation puzzles, Memory enhancement, Focus improvement, Problem-solving skills, Offline play

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

**In-app purchases:** none


## Frequently asked questions

### Is IQ Challenge Book free?

IQ Challenge Book is free to download, with no in-app purchases.

### Is Math Riddles free?

Math Riddles is free to download, with no in-app purchases.

### Which has better reviews, IQ Challenge Book or Math Riddles?

IQ Challenge Book and Math Riddles are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do IQ Challenge Book or Math Riddles have ads?

Neither IQ Challenge Book nor Math Riddles shows ads.

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

IQ Challenge Book ships an update every 76 months, and Math Riddles daily. Most recently, IQ Challenge Book was updated on October 24, 2026 and Math Riddles 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.*