# Zadarma vs MTT Virtual PBX

The clearest difference is rating: Zadarma at 3.2 against MTT Virtual PBX's 2.8. Zadarma also leads on review sentiment (40% vs 25%) and ratings volume (71 vs 5). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Zadarma holds the better App Store score, 3.2 against 2.8. That said, the two scores are not equally well evidenced: Zadarma has 71 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 40% of Zadarma's written reviews are positive against 25% of MTT Virtual PBX's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Zadarma | MTT Virtual PBX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (71 ratings)](https://appshunter.io/ios/app/zadarma/id905897821/reviews)** | [2.8 (5 ratings)](https://appshunter.io/ios/app/mtt-virtual-pbx/id905963803/reviews) |
| Number of ratings | **71** | 5 |
| Positive reviews | **40.5% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 73 MB | 67 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zadarma Project](https://appshunter.io/developer/984451132) | [MTT](https://appshunter.io/developer/533090664) |

## What reviewers say

### Zadarma

[App page](https://appshunter.io/ios/app/zadarma/id905897821)

This VoIP app allows you to make and receive calls and SMS using a virtual number and PBX. It offers features like call transfer, recording, and an AI voice agent to automate incoming calls. Seamlessly integrate with CRM and ERP systems for enhanced business communication.

**Highlights:** Virtual numbers and PBX, Call transfer, Call recordings, SMS messaging, AI Voice Agent, CRM integration

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

**In-app purchases:** none


### MTT Virtual PBX

[App page](https://appshunter.io/ios/app/mtt-virtual-pbx/id905963803)

This app provides global telecommunications services, enabling profitable communication between employees, offices, and branches. It offers a full-featured cloud PBX with features like IVR, call recording, and analytics, all accessible from a single mobile application.

**Highlights:** Global telecommunications access, Cloud PBX functionality, Extension and IVR support, Call redirecting and recording, Corporate employee directory, Instant messaging and file transfer, Conference call management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zadarma free?

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

### Is MTT Virtual PBX free?

MTT Virtual PBX is free to download, with no in-app purchases.

### Which has better reviews, Zadarma or MTT Virtual PBX?

Zadarma is rated higher. Zadarma averages 3.2 out of 5 from 71 ratings, while MTT Virtual PBX averages 2.8 from 5 ratings.

### Do Zadarma or MTT Virtual PBX have ads?

Neither Zadarma nor MTT Virtual PBX shows ads.

### Which is updated more often, Zadarma or MTT Virtual PBX?

Zadarma ships an update every 2 months, and MTT Virtual PBX every 2 months. Most recently, Zadarma was updated on October 29, 2026 and MTT Virtual PBX on October 24, 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.*