# AbtoVoIPClient vs PBXAPP

The clearest difference is device support: AbtoVoIPClient at 3 against PBXAPP's 1. 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.

AbtoVoIPClient ships an update every 5 months, PBXAPP every 2 months. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | AbtoVoIPClient | PBXAPP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/abtovoipclient/id527208668/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 12 MB | 109 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Sviatoslav Volodymyruvych Litynsky Private Enterpreneur](https://appshunter.io/developer/329178119) | [Outbox AG](https://appshunter.io/developer/1722630235) |

## What reviewers say

### AbtoVoIPClient

[App page](https://appshunter.io/ios/app/abtovoipclient/id527208668)

This application provides voice and video calling capabilities, along with text chat, for users with SIP accounts. It supports direct calls between clients and offers secure communication options. The app integrates with native iOS call features for a seamless user experience.

**Highlights:** Voice calls, Video calls, Text chat, Works with all popular SIP servers, Direct calls between clients, Secure calls using SRTP/ZRTP, CallKit integration

**Features:** macOS Compatibility

**In-app purchases:** none


### PBXAPP

[App page](https://appshunter.io/ios/app/pbxapp/id6474870851)

**In-app purchases:** none


## Frequently asked questions

### Is AbtoVoIPClient free?

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

### Is PBXAPP free?

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

### Do AbtoVoIPClient or PBXAPP have ads?

Neither AbtoVoIPClient nor PBXAPP shows ads.

### Which is updated more often, AbtoVoIPClient or PBXAPP?

AbtoVoIPClient ships an update every 5 months, and PBXAPP every 2 months. Most recently, AbtoVoIPClient was updated on October 23, 2026 and PBXAPP on October 9, 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.*