# さんすうだいすき vs 九九

The clearest difference is rating: さんすうだいすき at 5.0 against 九九's 1.0. さんすうだいすき also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. 九九 sells 1 one-off in-app purchase. さんすうだいすき asks for nothing beyond the download.

さんすうだいすき holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

さんすうだいすき ships an update monthly, 九九 every 5 months. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | さんすうだいすき | 九九 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1248690191/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/easy/id1611285814/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 83 MB | 109 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aine LLC.](https://appshunter.io/developer/948262793) | [Sumie Watanabe](https://appshunter.io/developer/1349237972) |

## What reviewers say

### さんすうだいすき

[App page](https://appshunter.io/ios/app/id1248690191)

**Features:** Vision Pro support

**In-app purchases:** none


### 九九

[App page](https://appshunter.io/ios/app/easy/id1611285814)

This app offers a comprehensive multiplication and word problem learning experience with randomized practice questions. It includes a review mode for incorrect answers and is free to use with optional ad removal via in-app purchase.

**Highlights:** Randomized multiplication problems, Word problem practice, Review mode for incorrect answers, Calendar feature, Name and icon display for submissions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 九九アプリバナー広告非表示 | $1.99 | one-time |


## Frequently asked questions

### Is さんすうだいすき free?

さんすうだいすき is free to download, with no in-app purchases.

### Is 九九 free?

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

### Which has better reviews, さんすうだいすき or 九九?

さんすうだいすき is rated higher. さんすうだいすき averages 5.0 out of 5 from 1 ratings, while 九九 averages 1.0 from 1 ratings.

### Do さんすうだいすき or 九九 have ads?

九九 shows ads; さんすうだいすき does not.

### Which is updated more often, さんすうだいすき or 九九?

さんすうだいすき ships an update monthly, and 九九 every 5 months. Most recently, さんすうだいすき was updated on October 7, 2026 and 九九 on October 3, 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.*