# シンプル誕生日カレンダー vs Fuuuga

The clearest difference is in-app purchases: シンプル誕生日カレンダー at none against Fuuuga's 1. シンプル誕生日カレンダー also leads on iOS requirement (15.0 vs 17.0). Fuuuga's advantage is update cadence (every 3 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Fuuuga sells 1 one-off in-app purchase. シンプル誕生日カレンダー asks for nothing beyond the download.

シンプル誕生日カレンダー ships an update every 8 months, Fuuuga every 3 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | シンプル誕生日カレンダー | Fuuuga |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 3 days** |
| Size | 6 MB | 102 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [gen endo](https://appshunter.io/developer/1616292897) | [Tomoki Sasaki](https://appshunter.io/developer/6780824620) |

## What reviewers say

### シンプル誕生日カレンダー

[App page](https://appshunter.io/ios/app/id1616292895)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fuuuga

[App page](https://appshunter.io/ios/app/fuuuga-multi-interval-tracker/id6780824618)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fuuuga+ | $1.99 | one-time |


## Frequently asked questions

### Is シンプル誕生日カレンダー free?

シンプル誕生日カレンダー is free to download, with no in-app purchases.

### Is Fuuuga free?

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

### Do シンプル誕生日カレンダー or Fuuuga have ads?

Both シンプル誕生日カレンダー and Fuuuga show ads.

### Which is updated more often, シンプル誕生日カレンダー or Fuuuga?

シンプル誕生日カレンダー ships an update every 8 months, and Fuuuga every 3 days. Most recently, シンプル誕生日カレンダー was updated on October 25, 2026 and Fuuuga on October 25, 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.*