# 369 vs Si4Keyboard

The clearest difference is price: 369 at Free against Si4Keyboard's $0.99. 369 also leads on iOS requirement (15.0 vs 17.6). Si4Keyboard's advantage is update cadence (fortnightly vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

369 is free to download; Si4Keyboard costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

369 ships an update every 2 months, Si4Keyboard fortnightly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 369 | Si4Keyboard |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 14 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [南京元贝信息技术有限公司](https://appshunter.io/developer/888628426) | [文焕 陈](https://appshunter.io/developer/1810161184) |

## What reviewers say

### 369

[App page](https://appshunter.io/ios/app/369/id1628706771)

Create professional-looking ID photos with ease using your phone. This app offers a wide range of standard and custom sizes for various purposes, from exams and certifications to official documents and resumes.

**Highlights:** Create ID photos with your phone, Wide range of standard and custom sizes, Supports various exams and certifications, Retouch and beautify photos, Suitable for official documents and resumes

**Features:** Vision Pro support

**In-app purchases:** none


### Si4Keyboard

[App page](https://appshunter.io/ios/app/si4keyboard/id6745263713)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 369 free?

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

### Is Si4Keyboard free?

Si4Keyboard costs $0.99, with no in-app purchases.

### Do 369 or Si4Keyboard have ads?

Neither 369 nor Si4Keyboard shows ads.

### Which is updated more often, 369 or Si4Keyboard?

369 ships an update every 2 months, and Si4Keyboard fortnightly. Most recently, 369 was updated on October 6, 2026 and Si4Keyboard on October 1, 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.*