# AbtoVoIPClient vs OperrTel

The clearest difference is review sentiment: AbtoVoIPClient at 67% against OperrTel's 0%. AbtoVoIPClient also leads on in-app purchases (none vs 3). OperrTel's advantage is rating (4.4 vs 3.7) and update cadence (weekly vs every 5 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. OperrTel sells 3 in-app purchases, starting at $0.49 per month. AbtoVoIPClient asks for nothing beyond the download.

OperrTel holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews complicate that: 67% of AbtoVoIPClient's written reviews are positive against 0% of OperrTel's, so the app with the better star average is not the one people write more warmly about.

AbtoVoIPClient ships an update every 5 months, OperrTel weekly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AbtoVoIPClient | OperrTel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/abtovoipclient/id527208668/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/operrtel/id1502437139/reviews)** |
| Number of ratings | 3 | **7** |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Subscription |
| Size | 12 MB | 135 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sviatoslav Volodymyruvych Litynsky Private Enterpreneur](https://appshunter.io/developer/329178119) | [Operr Technologies, Inc.](https://appshunter.io/developer/1197568140) |

## 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


### OperrTel

[App page](https://appshunter.io/ios/app/operrtel/id1502437139)

This business phone service app provides full mobility for its customers. Manage voice calls, instant messaging, and presence services from your mobile device, effectively carrying your office in your pocket.

**Highlights:** Mobile business phone service, Voice calls, Instant messaging, Presence services, Office mobility

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Fee | $0.49 | per month |
| Half Yearly Fee | $0.99 | per 6 months |
| Yearly Fee | $2.49 | per year |


## Frequently asked questions

### Is AbtoVoIPClient free?

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

### Is OperrTel free?

OperrTel is free to download, with in-app purchases available.

### Which has better reviews, AbtoVoIPClient or OperrTel?

OperrTel is rated higher. AbtoVoIPClient averages 3.7 out of 5 from 3 ratings, while OperrTel averages 4.4 from 7 ratings.

### Do AbtoVoIPClient or OperrTel have ads?

Neither AbtoVoIPClient nor OperrTel shows ads.

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

AbtoVoIPClient ships an update every 5 months, and OperrTel weekly. Most recently, AbtoVoIPClient was updated on November 1, 2026 and OperrTel 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.*