# 九九 vs 算数ベーダー

The clearest difference is in-app purchases: 算数ベーダー at none against 九九's 1. 算数ベーダー also leads on ads (none vs shown). 九九's advantage is iOS requirement (12.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. 九九 sells 1 one-off in-app purchase. 算数ベーダー asks for nothing beyond the download.

## The numbers

| Metric | 九九 | 算数ベーダー |
| --- | --- | --- |
| 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 | **No** |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 109 MB | 6 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [Seiji Kinoshita](https://appshunter.io/developer/1812858170) |

## 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 |


### 算数ベーダー

[App page](https://appshunter.io/ios/app/id6772436725)

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

**In-app purchases:** none


## Frequently asked questions

### Is 九九 free?

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

### Is 算数ベーダー free?

算数ベーダー is free to download, with no in-app purchases.

### Do 九九 or 算数ベーダー have ads?

九九 shows ads; 算数ベーダー does not.

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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.*