# OSSU vs MY勤怠

The clearest difference is update cadence: MY勤怠 at every 10 days against OSSU's every 4 months. MY勤怠 also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OSSU ships an update every 4 months, MY勤怠 every 10 days. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OSSU | MY勤怠 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 40 MB | 50 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Raon Corp.](https://appshunter.io/developer/1851653875) | [Yu Wang](https://appshunter.io/developer/1702348940) |

## What reviewers say

### OSSU

[App page](https://appshunter.io/ios/app/ossu/id1509242120)

**Features:** macOS Compatibility

**In-app purchases:** none


### MY勤怠

[App page](https://appshunter.io/ios/app/my/id6461162284)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OSSU free?

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

### Is MY勤怠 free?

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

### Do OSSU or MY勤怠 have ads?

Neither OSSU nor MY勤怠 shows ads.

### Which is updated more often, OSSU or MY勤怠?

OSSU ships an update every 4 months, and MY勤怠 every 10 days. Most recently, OSSU was updated on October 15, 2026 and MY勤怠 on October 10, 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.*