# Fixed Line vs FusionSIP

The clearest difference is update cadence: FusionSIP at every 2 weeks against Fixed Line's every 2 months. Fixed Line's advantage is iOS requirement (13.0 vs 15.0). 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.

Fixed Line ships an update every 2 months, FusionSIP every 2 weeks. The most recent releases landed on June 24, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Fixed Line | FusionSIP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fixed-line/id1078901101/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 34 MB | 11 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [UNICOPE GmbH](https://appshunter.io/developer/725531823) | [EDNT GmbH](https://appshunter.io/developer/975507681) |

## What reviewers say

### Fixed Line

[App page](https://appshunter.io/ios/app/fixed-line/id1078901101)

Transform your smartphone into a mobile extension of your virtual PBX. Make and receive calls worldwide using your landline number, accessing all your PBX features on the go. This app requires an active Fixed Line System account to function.

**Highlights:** Mobile PBX extension, Worldwide landline calls, Account management, Full telephony features, Contact list integration, Call journal, Team view & presence, Chat and group chat

**Features:** Siri integration

**In-app purchases:** none


### FusionSIP

[App page](https://appshunter.io/ios/app/fusionsip/id1586959709)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fixed Line free?

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

### Is FusionSIP free?

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

### Do Fixed Line or FusionSIP have ads?

Neither Fixed Line nor FusionSIP shows ads.

### Which is updated more often, Fixed Line or FusionSIP?

Fixed Line ships an update every 2 months, and FusionSIP every 2 weeks. Most recently, Fixed Line was updated on June 24, 2026 and FusionSIP on September 15, 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.*