Zadarma vs MTT Virtual PBX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zadarma
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.
- Virtual numbers and PBX
- Call transfer
- Call recordings
- SMS messaging
- AI Voice Agent
- CRM integration
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Zadarma is a simple and reliable VoIP app for making and receiving calls and SMS. Get a virtual number and PBX in one app, right on your mobile! Stay connected wherever you are with high-quality calls and affordable rates. Key Features: - Virtual numbers & PBX – get a virtual number in 110 countries and connect to your PBX directly in the app. - Call transfer – easily transfer calls to colleagues or other numbers. - Call recordings – listen to recorded calls right in the app. - SMS messaging – send and receive texts easily. - AI Voice Agent – automate incoming calls with an AI assistant that can answer questions, use your knowledge base, and transfer calls to your team when needed. Need more? Get a free Teamsale CRM already integrated with our telephony, plus seamless integration with all popular CRM and ERP systems. Zadarma also offers call tracking, website widgets, speech analytics, and more to boost your business. Learn more at zadarma.com!
MTT Virtual PBX
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.
- 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
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MTT Virtual PBX - access to telecommunications services from anywhere all over the world and profitable communication between employees, offices and branches. Be always in touch and don’t miss any calls. MTT Virtual PBX - is a universal mobile application with which you can call in any direction and us all the full-feat. cloud PBX, including extension, IVR, call redirecting, call recording, call analytics and much more. Universal workplace makes it possible and easy • Convenient and fast local communications in Your Company • Fast and easy communication and data transfer in you company and one convenient chat instead uncomfortable email • A simple solution to merge calls in the conference • Corporate Employee Directory • Flexible call redirect setting to any mobile workplace • Corporate Instant Messaging and secure file transfer • User friendly conference call, multichannel support, call transfer and IM/call management, user status call/messages history • Its ease to check your balance Use only one mobile application for all communication with any Internet channel all over the world!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Zadarma | MTT Virtual PBX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (71 ratings) — better | 2.8 (5 ratings) |
| Positive reviews | 40.5% of reviews — better | 25.0% of reviews |
| Number of ratings | 71 — better | 5 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 73 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Zadarma Project | MTT |
Customer experience
Zadarma
MTT Virtual PBX
In-app purchases
Zadarma
No in-app purchases
MTT Virtual PBX
No in-app purchases
