# MobyFon vs GS EXT

The clearest difference is update cadence: MobyFon at every 3 months against GS EXT's every 9 months. GS EXT's advantage is iOS requirement (9.0 vs 16.0). 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.

MobyFon ships an update every 3 months, GS EXT every 9 months. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | MobyFon | GS EXT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | — |
| Size | 109 MB | 13 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [wilhelm.tel GmBH](https://appshunter.io/developer/1316559598) | [Grandstream](https://appshunter.io/developer/951547763) |

## What reviewers say

### MobyFon

[App page](https://appshunter.io/ios/app/mobyfon/id1316559599)

Make calls using your home landline number and service from your smartphone. Stay reachable everywhere with your fixed-line number. This app allows seamless integration of your landline service with your mobile device.

**Highlights:** Use landline number on smartphone, Mobile reachability with landline number, Integrates landline service with mobile, Easy to use interface

**In-app purchases:** none


### GS EXT

[App page](https://appshunter.io/ios/app/gs-ext/id1597033431)

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

**In-app purchases:** none


## Frequently asked questions

### Is MobyFon free?

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

### Is GS EXT free?

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

### Do MobyFon or GS EXT have ads?

Neither MobyFon nor GS EXT shows ads.

### Which is updated more often, MobyFon or GS EXT?

MobyFon ships an update every 3 months, and GS EXT every 9 months. Most recently, MobyFon was updated on November 4, 2026 and GS EXT on November 7, 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.*