# Si4Keyboard vs Video DRM

The clearest difference is price: Video DRM at Free against Si4Keyboard's $0.99. Video DRM also leads on iOS requirement (15.0 vs 17.6). Si4Keyboard's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

Video DRM is free to download; Si4Keyboard costs $0.99 up front. Video DRM sells 1 in-app purchase, starting at $4.99 per month. Si4Keyboard asks for nothing beyond the download.

Si4Keyboard ships an update fortnightly, Video DRM every 3 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Si4Keyboard | Video DRM |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/video-drm/id6762011254/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 85 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [文焕 陈](https://appshunter.io/developer/1810161184) | [Ahmed Elnaggar](https://appshunter.io/developer/1871551990) |

## What reviewers say

### Si4Keyboard

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Video DRM

[App page](https://appshunter.io/ios/app/video-drm/id6762011254)

Secure your MP4 video files using Digital Rights Management. Encrypt videos with passwords, watermarks, and expiration dates. Files can only be accessed through this application, ensuring your content remains protected.

**Highlights:** Digital Rights Management (DRM) protection, Password encryption, Watermarking, Expiration dates for videos, Offline data entry, MP4 format support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription monthly | $4.99 | per month |


## Frequently asked questions

### Is Si4Keyboard free?

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

### Is Video DRM free?

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

### Do Si4Keyboard or Video DRM have ads?

Neither Si4Keyboard nor Video DRM shows ads.

### Which is updated more often, Si4Keyboard or Video DRM?

Si4Keyboard ships an update fortnightly, and Video DRM every 3 weeks. Most recently, Si4Keyboard was updated on October 25, 2026 and Video DRM on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*