# Ninimaths vs Number Memory 25

The clearest difference is price: Ninimaths at Free against Number Memory 25's $0.99. Ninimaths also leads on ratings volume (45 vs 5) and iOS requirement (13.0 vs 15.0). Number Memory 25's advantage is update cadence (every 3 weeks vs every 2 months). On rating, ads, in-app purchases and device support there is nothing between them.

Ninimaths is free to download; Number Memory 25 costs $0.99 up front. Ninimaths sells 3 one-off in-app purchases and Number Memory 25 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Ninimaths against 5.0 for Number Memory 25. That said, the two scores are not equally well evidenced: Ninimaths has 45 ratings behind it against 5, so its average is the more settled of the two.

Ninimaths ships an update every 2 months, Number Memory 25 every 3 weeks. The most recent releases landed on September 29, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Ninimaths | Number Memory 25 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.9 (45 ratings)](https://appshunter.io/ios/app/ninimaths/id647989498/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/number-memory-25/id6448686063/reviews)** |
| Number of ratings | **45** | 5 |
| Positive reviews | 97.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 11 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ninicode](https://appshunter.io/developer/647989501) | [T&T United Inc.](https://appshunter.io/developer/468282934) |

## 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 |


### Number Memory 25

[App page](https://appshunter.io/ios/app/number-memory-25/id6448686063)

This brain training app helps improve memory by challenging users to memorize and recall sequences of numbers. Regular, short practice sessions can enhance visual memory and cognitive skills.

**Highlights:** Memorize and recall number sequences, Visual memory training, Daily 30-second practice, Progressive difficulty, Simple, challenging gameplay

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All | Free | one-time |


## Frequently asked questions

### Is Ninimaths free?

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

### Is Number Memory 25 free?

Number Memory 25 costs $0.99, and also offers in-app purchases.

### Which has better reviews, Ninimaths or Number Memory 25?

Number Memory 25 is rated higher. Ninimaths averages 4.9 out of 5 from 45 ratings, while Number Memory 25 averages 5.0 from 5 ratings.

### Do Ninimaths or Number Memory 25 have ads?

Neither Ninimaths nor Number Memory 25 shows ads.

### Which is updated more often, Ninimaths or Number Memory 25?

Ninimaths ships an update every 2 months, and Number Memory 25 every 3 weeks. Most recently, Ninimaths was updated on September 29, 2026 and Number Memory 25 on September 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.*