# 鼓己 vs SafetyCertification

The clearest difference is iOS requirement: 鼓己 at 11.0 against SafetyCertification's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

鼓己 ships an update every 5 weeks, SafetyCertification every 3 weeks. The most recent releases landed on September 18, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | 鼓己 | SafetyCertification |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 17 MB | 9 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yun Chen](https://appshunter.io/developer/1670603182) | [PT CITRA INTERNATIONAL DIGITAL](https://appshunter.io/developer/1770950914) |

## What reviewers say

### 鼓己

[App page](https://appshunter.io/ios/app/id6445945421)

**Features:** macOS Compatibility

**In-app purchases:** none


### SafetyCertification

[App page](https://appshunter.io/ios/app/safetycertification/id6737294921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 鼓己 free?

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

### Is SafetyCertification free?

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

### Do 鼓己 or SafetyCertification have ads?

Neither 鼓己 nor SafetyCertification shows ads.

### Which is updated more often, 鼓己 or SafetyCertification?

鼓己 ships an update every 5 weeks, and SafetyCertification every 3 weeks. Most recently, 鼓己 was updated on September 18, 2026 and SafetyCertification on June 5, 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.*