# Mobile PBx vs ZIRNET VoIP

The clearest difference is update cadence: Mobile PBx at every 3 weeks against ZIRNET VoIP's every 4 months. Mobile PBx also leads on device support (3 vs 1) and iOS requirement (8.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Mobile PBx against 5.0 for ZIRNET VoIP. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Mobile PBx ships an update every 3 weeks, ZIRNET VoIP every 4 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mobile PBx | ZIRNET VoIP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/mobile-pbx/id1011205369/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/zirnet-voip/id1615084939/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 18 MB | 109 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Shopety Inc.](https://appshunter.io/developer/317852092) | [ZIRNET, LLC](https://appshunter.io/developer/1615084941) |

## What reviewers say

### Mobile PBx

[App page](https://appshunter.io/ios/app/mobile-pbx/id1011205369)

This application allows users to connect with and manage their Mobile PBX account. It provides a way to interact with your business phone system directly from your mobile device.

**Highlights:** Interact with Mobile PBX Account, Manage business phone system, Mobile device access

**Features:** macOS Compatibility

**In-app purchases:** none


### ZIRNET VoIP

[App page](https://appshunter.io/ios/app/zirnet-voip/id1615084939)

This SIP-based softphone app enables HD voice and video calls, along with push notifications. It facilitates free calls exclusively between users of the Zirnet platform.

**Highlights:** SIP-based softphone, Push notifications, HD voice calling, HD video calling, Free calls between Zirnet users

**In-app purchases:** none


## Frequently asked questions

### Is Mobile PBx free?

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

### Is ZIRNET VoIP free?

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

### Which has better reviews, Mobile PBx or ZIRNET VoIP?

Mobile PBx and ZIRNET VoIP are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Mobile PBx or ZIRNET VoIP have ads?

Neither Mobile PBx nor ZIRNET VoIP shows ads.

### Which is updated more often, Mobile PBx or ZIRNET VoIP?

Mobile PBx ships an update every 3 weeks, and ZIRNET VoIP every 4 months. Most recently, Mobile PBx was updated on November 1, 2026 and ZIRNET VoIP on November 3, 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.*