# GSM vs Royal Link

The clearest difference is update cadence: GSM at every 4 months against Royal Link's every 13 months. GSM also leads on iOS requirement (9.0 vs 15.6). 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.

GSM ships an update every 4 months, Royal Link every 13 months. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | GSM | Royal Link |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Size | 7 MB | 26 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CONTA-CLIP Verbindungstechnik GmbH](https://appshunter.io/developer/601327002) | [Royal Lab](https://appshunter.io/developer/1355496013) |

## What reviewers say

### GSM

[App page](https://appshunter.io/ios/app/gsm-pro2/id1176072366)

**Features:** macOS Compatibility

**In-app purchases:** none


### Royal Link

[App page](https://appshunter.io/ios/app/royal-link/id6740776946)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GSM free?

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

### Is Royal Link free?

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

### Do GSM or Royal Link have ads?

Neither GSM nor Royal Link shows ads.

### Which is updated more often, GSM or Royal Link?

GSM ships an update every 4 months, and Royal Link every 13 months. Most recently, GSM was updated on October 14, 2026 and Royal Link on October 25, 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.*