# SD vs Cyber Rx

The clearest difference is in-app purchases: SD at none against Cyber Rx's 1. SD also leads on iOS requirement (13.0 vs 18.6). Cyber Rx's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Cyber Rx sells 1 one-off in-app purchase. SD asks for nothing beyond the download.

SD ships an update every 2 months, Cyber Rx every 3 weeks. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SD | Cyber Rx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 50 MB | 2 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Applied Concepts Incorporated](https://appshunter.io/developer/1439604257) | [Mohamed Saud](https://appshunter.io/developer/1797283594) |

## What reviewers say

### SD

[App page](https://appshunter.io/ios/app/sddevice-manager/id6742332426)

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

**In-app purchases:** none


### Cyber Rx

[App page](https://appshunter.io/ios/app/cyber-rx/id6761430318)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is SD free?

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

### Is Cyber Rx free?

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

### Do SD or Cyber Rx have ads?

Neither SD nor Cyber Rx shows ads.

### Which is updated more often, SD or Cyber Rx?

SD ships an update every 2 months, and Cyber Rx every 3 weeks. Most recently, SD was updated on October 25, 2026 and Cyber Rx on October 12, 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.*