# 日本の童謡・わらべ歌2 vs Fast100Math

The clearest difference is in-app purchases: Fast100Math at none against 日本の童謡・わらべ歌2's 1. Fast100Math also leads on update cadence (every 3 days vs every 13 months). 日本の童謡・わらべ歌2's advantage is iOS requirement (8.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. 日本の童謡・わらべ歌2 sells 1 one-off in-app purchase. Fast100Math asks for nothing beyond the download.

日本の童謡・わらべ歌2 ships an update every 13 months, Fast100Math every 3 days. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 日本の童謡・わらべ歌2 | Fast100Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 days** |
| Size | 80 MB | 31 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yumearu Co.,Ltd.](https://appshunter.io/developer/411112570) | [makoto amijima](https://appshunter.io/developer/1493994946) |

## What reviewers say

### 日本の童謡・わらべ歌2

[App page](https://appshunter.io/ios/app/2/id1103148672)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | one-time |


### Fast100Math

[App page](https://appshunter.io/ios/app/fast100math/id6739807220)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 日本の童謡・わらべ歌2 free?

日本の童謡・わらべ歌2 is free to download, with in-app purchases available.

### Is Fast100Math free?

Fast100Math is free to download, with no in-app purchases.

### Do 日本の童謡・わらべ歌2 or Fast100Math have ads?

Neither 日本の童謡・わらべ歌2 nor Fast100Math shows ads.

### Which is updated more often, 日本の童謡・わらべ歌2 or Fast100Math?

日本の童謡・わらべ歌2 ships an update every 13 months, and Fast100Math every 3 days. Most recently, 日本の童謡・わらべ歌2 was updated on September 25, 2026 and Fast100Math on September 28, 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.*