# たこさんすうのロックで九九 vs 九九

The clearest difference is rating: たこさんすうのロックで九九 at 3.0 against 九九's 1.0. たこさんすうのロックで九九 also leads on in-app purchases (none vs 1). 九九's advantage is iOS requirement (12.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 九九 sells 1 one-off in-app purchase. たこさんすうのロックで九九 asks for nothing beyond the download.

たこさんすうのロックで九九 holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

たこさんすうのロックで九九 ships an update every 7 months, 九九 every 5 months. The most recent releases landed on June 1, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | たこさんすうのロックで九九 | 九九 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/id1162744633/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/easy/id1611285814/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | — | Free with in-app purchases |
| Size | 106 MB | 109 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NSC, K.K.](https://appshunter.io/developer/501890400) | [Sumie Watanabe](https://appshunter.io/developer/1349237972) |

## What reviewers say

### たこさんすうのロックで九九

[App page](https://appshunter.io/ios/app/id1162744633)

**Features:** macOS Compatibility

**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 たこさんすうのロックで九九 free?

たこさんすうのロックで九九 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, たこさんすうのロックで九九 or 九九?

たこさんすうのロックで九九 is rated higher. たこさんすうのロックで九九 averages 3.0 out of 5 from 2 ratings, while 九九 averages 1.0 from 1 ratings.

### Do たこさんすうのロックで九九 or 九九 have ads?

Both たこさんすうのロックで九九 and 九九 show ads.

### Which is updated more often, たこさんすうのロックで九九 or 九九?

たこさんすうのロックで九九 ships an update every 7 months, and 九九 every 5 months. Most recently, たこさんすうのロックで九九 was updated on June 1, 2026 and 九九 on June 5, 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.*