# 九九 vs 登降園システム

The clearest difference is in-app purchases: 登降園システム at none against 九九's 1. 九九's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 九九 sells 1 one-off in-app purchase. 登降園システム asks for nothing beyond the download.

## The numbers

| Metric | 九九 | 登降園システム |
| --- | --- | --- |
| 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 | **No** |
| Ads | Yes | — |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 109 MB | 25 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [ASAHI POWER SERVICE K.K.](https://appshunter.io/developer/1501635645) |

## 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 |


### 登降園システム

[App page](https://appshunter.io/ios/app/id6504741605)

**In-app purchases:** none


## Frequently asked questions

### Is 九九 free?

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

### Is 登降園システム free?

登降園システム is free to download, with no in-app purchases.

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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.*