# Ninimaths vs Mental Math Speed Trainer

The clearest difference is review sentiment: Ninimaths at 97% against Mental Math Speed Trainer's 18%. Ninimaths also leads on rating (4.9 vs 4.3) and ads (none vs shown). Mental Math Speed Trainer's advantage is update cadence (weekly vs every 2 months). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Ninimaths sells 3 one-off in-app purchases and Mental Math Speed Trainer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Ninimaths holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Ninimaths has 45 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 18% of Mental Math Speed Trainer's.

Ninimaths ships an update every 2 months, Mental Math Speed Trainer weekly. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Ninimaths | Mental Math Speed Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (45 ratings)](https://appshunter.io/ios/app/ninimaths/id647989498/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/mental-math-speed-trainer/id6476421167/reviews) |
| Number of ratings | **45** | 4 |
| Positive reviews | **97.4% of reviews** | 17.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 56 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ninicode](https://appshunter.io/developer/647989501) | [TAKAYUKI HASHIMOTO](https://appshunter.io/developer/1689527181) |

## 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 Speed Trainer

[App page](https://appshunter.io/ios/app/mental-math-speed-trainer/id6476421167)

Sharpen your mental math skills with this engaging app focused on addition. Customize card numbers and timing intervals for a personalized learning experience. Track your progress with visually stimulating graphics, suitable for all ages.

**Highlights:** Customizable card numbers, Adjustable timing intervals, Focus on addition, Progress tracking, Engaging visuals, User-friendly interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月間プラン | $2.99 | per month |
| 年間プラン | $19.99 | per year |
| Lifetime Premium | $39.99 | one-time |


## Frequently asked questions

### Is Ninimaths free?

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

### Is Mental Math Speed Trainer free?

Mental Math Speed Trainer is free to download, with in-app purchases available.

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

Ninimaths is rated higher. Ninimaths averages 4.9 out of 5 from 45 ratings, while Mental Math Speed Trainer averages 4.3 from 4 ratings.

### Do Ninimaths or Mental Math Speed Trainer have ads?

Mental Math Speed Trainer shows ads; Ninimaths does not.

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

Ninimaths ships an update every 2 months, and Mental Math Speed Trainer weekly. Most recently, Ninimaths was updated on September 25, 2026 and Mental Math Speed Trainer on September 22, 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.*