# Ninimaths vs 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」

The clearest difference is review sentiment: Ninimaths at 97% against 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」's 38%. Ninimaths also leads on ads (none vs shown) and rating (4.9 vs 4.5). 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」's advantage is in-app purchases (none vs 3). On price, update cadence and device support there is nothing between them.

Both are free to download. Ninimaths sells 3 one-off in-app purchases. 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 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 45 ratings behind it against 2, 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 38% of 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」's.

Ninimaths ships an update every 2 months, 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 every 3 months. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Ninimaths | 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (45 ratings)](https://appshunter.io/ios/app/ninimaths/id647989498/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/id894395724/reviews) |
| Number of ratings | **45** | 2 |
| Positive reviews | **97.4% of reviews** | 38.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 11 MB | 286 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ninicode](https://appshunter.io/developer/647989501) | [Pixel Co., Ltd.](https://appshunter.io/developer/1743924614) |

## 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 |


### 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」

[App page](https://appshunter.io/ios/app/id894395724)

This app makes learning multiplication tables fun for children. Solve problems to collect and evolve monsters, filling a monster encyclopedia. Features multiple learning modes and challenges to build math skills.

**Highlights:** Learn multiplication tables (1-9), Collect and evolve 40 unique monsters, Three learning modes: sequential, reverse, random, Daily challenge with word problems, Monster encyclopedia completion, Game-like learning for engagement

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ninimaths free?

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

### Is 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 free?

九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 is free to download, with no in-app purchases.

### Which has better reviews, Ninimaths or 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」?

Ninimaths is rated higher. Ninimaths averages 4.9 out of 5 from 45 ratings, while 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 averages 4.5 from 2 ratings.

### Do Ninimaths or 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 have ads?

九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 shows ads; Ninimaths does not.

### Which is updated more often, Ninimaths or 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」?

Ninimaths ships an update every 2 months, and 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 every 3 months. Most recently, Ninimaths was updated on September 25, 2026 and 九九を覚えてモンスター図鑑あつめ！ 「九九のトライ」 on September 10, 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.*