# AbtoVoIPClient vs Kothon

The clearest difference is review sentiment: AbtoVoIPClient at 67% against Kothon's 0%. AbtoVoIPClient also leads on rating (4.5 vs 3.5). Kothon's advantage is iOS requirement (13.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

AbtoVoIPClient holds the better App Store score, 4.5 against 3.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 67% of AbtoVoIPClient's written reviews are positive against 0% of Kothon's.

AbtoVoIPClient ships an update every 5 months, Kothon every 6 months. The most recent releases landed on September 9, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | AbtoVoIPClient | Kothon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/abtovoipclient/id527208668/reviews)** | [3.5 (4 ratings)](https://appshunter.io/ios/app/kothon/id1551610848/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 12 MB | 183 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) | [CONFIDENCE GROUP OF INDUSTRIES LTD.](https://appshunter.io/developer/1528158932) |

## 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


### Kothon

[App page](https://appshunter.io/ios/app/kothon/id1551610848)

This communication platform offers free app-to-app voice and video calls, instant messaging, and file sharing over the internet. It also allows users to make international calls to landlines and mobiles at competitive rates, with flexible package options and wallet recharges.

**Highlights:** App-to-App free audio/video calls, Instant messaging, File sharing, Low-rate international calling, Attractive package subscriptions, Wallet recharge options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AbtoVoIPClient free?

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

### Is Kothon free?

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

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

AbtoVoIPClient is rated higher. AbtoVoIPClient averages 4.5 out of 5 from 2 ratings, while Kothon averages 3.5 from 4 ratings.

### Do AbtoVoIPClient or Kothon have ads?

Neither AbtoVoIPClient nor Kothon shows ads.

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

AbtoVoIPClient ships an update every 5 months, and Kothon every 6 months. Most recently, AbtoVoIPClient was updated on September 9, 2026 and Kothon on July 7, 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.*