# Mental Math Practice & Riddles vs ReflexJet

The clearest difference is in-app purchases: ReflexJet at none against Mental Math Practice & Riddles's 7. ReflexJet also leads on update cadence (every 8 days vs every 3 weeks). Mental Math Practice & Riddles's advantage is iOS requirement (13.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Mental Math Practice & Riddles sells 7 in-app purchases, starting at $0.99 per month. ReflexJet asks for nothing beyond the download.

Mental Math Practice & Riddles ships an update every 3 weeks, ReflexJet every 8 days. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Mental Math Practice & Riddles | ReflexJet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mental-math-practice-and-riddles/id6463495405/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 65 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yesno Labs](https://appshunter.io/developer/1704491583) | [Azaza Farid](https://appshunter.io/developer/1568336991) |

## What reviewers say

### Mental Math Practice & Riddles

[App page](https://appshunter.io/ios/app/mental-math-practice-and-riddles/id6463495405)

Enhance your arithmetic and logic skills with engaging mini-games and puzzles. This app offers a variety of challenges, from timed math practices to creative equation building, designed to sharpen your cognitive abilities in a fun and relaxing way.

**Highlights:** Mental math challenges, Cross Math puzzles, Math riddles, Timed math practices, Connect numbers puzzles, Build equations, Reach the number challenges

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yosu Limited Offer: 1 month | $0.99 | per month |
| Yosu Limited Offer: 3 months | $1.99 | per 3 months |
| Yosu Math Premium: 1 month | $2.99 | per month |
| Yosu Limited Offer: 1 year | $4.99 | per year |
| Yosu Math Premium: 3 months | $5.99 | per 3 months |
| Yosu Math Premium: 1 year | $14.99 | per year |
| Yosu Math Limited Offer | $3.99 | one-time |


### ReflexJet

[App page](https://appshunter.io/ios/app/reflexjet-brain-benchmark/id6760736706)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mental Math Practice & Riddles free?

Mental Math Practice & Riddles is free to download, with in-app purchases available.

### Is ReflexJet free?

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

### Do Mental Math Practice & Riddles or ReflexJet have ads?

Both Mental Math Practice & Riddles and ReflexJet show ads.

### Which is updated more often, Mental Math Practice & Riddles or ReflexJet?

Mental Math Practice & Riddles ships an update every 3 weeks, and ReflexJet every 8 days. Most recently, Mental Math Practice & Riddles was updated on October 15, 2026 and ReflexJet on October 1, 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.*