PBX Viva vs UST
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PBX Viva
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With Virtual PBX, your company will be able to effectively organize telephony: set up receiving calls to a single multi-channel number, voice greeting and call distribution, analyze call statistics and record conversations. Thanks to the mobile application, the main functions of the Virtual PBX are available on your smartphone, and you can use them at any time, even outside the office. Mobile app functionality: access to call history and records (searchable by customer number or employee name); listening to recordings of conversations; convenient summary of calls (accepted, made and missed at the moment); viewing statistics for any period; setting up rules for receiving calls and forwarding calls; creating and editing departments; adding new VATS users. Install the PBX Viva-MTS mobile application, enter the login and password for your personal VATS account and control the company's calls in real time.
UST
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Welcome to UST - Our app connects you with trusted local professionals for seamless car repair and maintenance. . Get transparent pricing, read verified customer reviews, and schedule your service with ease. . Plus, effortlessly find and purchase the auto parts you need. . Experience hassle-free auto care and convenience with UST.
Screenshots
Verdict
The clearest difference is update cadence: UST at every 2 months against PBX Viva's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PBX Viva ships an update every 3 months, UST every 2 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | PBX Viva | UST |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 months โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.5 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 59 MB | 16 MB |
| Age rating | 4+ | 17+ |
| Developer | Viva Armenia CJSC | UST LLC |
In-app purchases
PBX Viva
No in-app purchases
UST
No in-app purchases
Questions
Is PBX Viva free?
Is UST free?
Do PBX Viva or UST have ads?
Which is updated more often, PBX Viva or UST?
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