# MTT Virtual PBX vs Mercaux

The clearest difference is rating: Mercaux at 4.0 against MTT Virtual PBX's 2.8. MTT Virtual PBX's advantage is iOS requirement (13.0 vs 15.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

Mercaux holds the better App Store score, 4.0 against 2.8. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 25% and 25% positive.

MTT Virtual PBX ships an update every 2 months, Mercaux every 6 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MTT Virtual PBX | Mercaux |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (5 ratings)](https://appshunter.io/ios/app/mtt-virtual-pbx/id905963803/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/mercaux/id1478254761/reviews)** |
| Number of ratings | **5** | 4 |
| Positive reviews | 25.0% of reviews | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 67 MB | 83 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MTT](https://appshunter.io/developer/533090664) | [Mercaux Inc.](https://appshunter.io/developer/1478254760) |

## What reviewers say

### 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


### Mercaux

[App page](https://appshunter.io/ios/app/mercaux/id1478254761)

Empowers retail sales associates with digital tools to enhance the in-store customer experience. Features include sales assistance, personalized styling, clienteling, and streamlined store operations to drive sales uplift.

**Highlights:** Sales Assist with product information, Customer styling and storytelling, Personalized clienteling, In-store fulfillment options, Omnichannel experience integration, Mobile checkout, Store operations management

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MTT Virtual PBX free?

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

### Is Mercaux free?

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

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

Mercaux is rated higher. MTT Virtual PBX averages 2.8 out of 5 from 5 ratings, while Mercaux averages 4.0 from 4 ratings.

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

Neither MTT Virtual PBX nor Mercaux shows ads.

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

MTT Virtual PBX ships an update every 2 months, and Mercaux every 6 weeks. Most recently, MTT Virtual PBX was updated on November 6, 2026 and Mercaux 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.*