# Ninimaths vs Mental Math

The clearest difference is in-app purchases: Mental Math at none against Ninimaths's 3. Mental Math also leads on update cadence (every 6 days vs every 2 months). Ninimaths's advantage is ads (none vs shown) and rating (4.9 vs 4.5). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Ninimaths sells 3 one-off in-app purchases. Mental Math asks for nothing beyond the download.

Ninimaths holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Ninimaths has 46 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 97% of Ninimaths's written reviews are positive against 75% of Mental Math's.

Ninimaths ships an update every 2 months, Mental Math every 6 days. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Ninimaths | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (46 ratings)](https://appshunter.io/ios/app/ninimaths/id647989498/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/mental-math-boost-cal-skills/id1572014520/reviews) |
| Number of ratings | **46** | 4 |
| Positive reviews | **97.4% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 11 MB | 67 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ninicode](https://appshunter.io/developer/647989501) | [Yudai Kitano](https://appshunter.io/developer/1529380991) |

## What reviewers say

### Ninimaths

[App page](https://appshunter.io/ios/app/ninimaths/id647989498)

Enhance your mental arithmetic skills with a variety of calculation modes. Practice addition, subtraction, multiplication, and division with customizable number ranges and column display. Track your progress with daily scores and compete with others through a ranking system.

**Highlights:** Multiple calculation modes (add, subtract, multiply, divide, mix), Customizable number ranges (1-5 digits), Column display format, Daily score recording and graphing, Game Center ranking, Time trial mode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Hamburger | $1.99 | one-time |
| Ramen | $4.99 | one-time |


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-boost-cal-skills/id1572014520)

Train your calculation skills with this app by solving math problems against the clock. Customize the time limit and number of questions for a personalized challenge. Review your results to track progress and improve your math abilities.

**Highlights:** Solve math problems against a time limit, Customize time limit and number of problems, Review calculation results, Simple and comfortable user interface, Gaming experience for spare time

**In-app purchases:** none


## Frequently asked questions

### Is Ninimaths free?

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

### Is Mental Math free?

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

### Which has better reviews, Ninimaths or Mental Math?

Ninimaths is rated higher. Ninimaths averages 4.9 out of 5 from 46 ratings, while Mental Math averages 4.5 from 4 ratings.

### Do Ninimaths or Mental Math have ads?

Mental Math shows ads; Ninimaths does not.

### Which is updated more often, Ninimaths or Mental Math?

Ninimaths ships an update every 2 months, and Mental Math every 6 days. Most recently, Ninimaths was updated on October 23, 2026 and Mental Math on October 15, 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.*