# 九九 vs Speed Math Drill

The clearest difference is update cadence: Speed Math Drill at every 10 days against 九九's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 九九 sells 1 one-off in-app purchase and Speed Math Drill sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

九九 ships an update every 5 months, Speed Math Drill every 10 days. The most recent releases landed on June 5, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 九九 | Speed Math Drill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/easy/id1611285814/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 109 MB | 38 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [MASAKI CHIBA](https://appshunter.io/developer/1890488277) |

## What reviewers say

### 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 |


### Speed Math Drill

[App page](https://appshunter.io/ios/app/speed-math-drill-mental-math/id6761619388)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


## Frequently asked questions

### Is 九九 free?

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

### Is Speed Math Drill free?

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

### Do 九九 or Speed Math Drill have ads?

Both 九九 and Speed Math Drill show ads.

### Which is updated more often, 九九 or Speed Math Drill?

九九 ships an update every 5 months, and Speed Math Drill every 10 days. Most recently, 九九 was updated on June 5, 2026 and Speed Math Drill on September 12, 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.*