AbtoVoIPClient vs Kothon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AbtoVoIPClient
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.
- Voice calls
- Video calls
- Text chat
- Works with all popular SIP servers
- Direct calls between clients
- Secure calls using SRTP/ZRTP
- CallKit integration
Read full descriptionHide full description
ABTO Software's VoIP SIP softphone. Can be used to call sip numbers and landline numbers (if sip provider has this option). Features: voice calls; video calls; text chat (based on SIP MESSAGE request); works with all popual SIP servers, including Asterisk/FreeSwitch; make direct calls between clients without SIP server; allows to use UDP/TCP/TLS protocols for SIP transport; ability to make secure calls using SRTP/ZRTP; supports STUN/ICE; IPv6 support; CallKit - native incoming call UI and system integration of VoIP calls; 2 simultaneous calls; call conferencing; attended transfer.
Kothon
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.
- App-to-App free audio/video calls
- Instant messaging
- File sharing
- Low-rate international calling
- Attractive package subscriptions
- Wallet recharge options
Read full descriptionHide full description
Kothon is a mobile OTT platform which offers end-to-end mobile communication services such as voice, video, instant messaging, file sharing through mobile data or Wi-Fi internet connection. Kothon allows App-to-App free audio, video calls with calling facility to any numbers of the world at competitive rates. Features: Call landlines and mobiles for extremely low-rates around the world. Every second pulse for local calling. Free talk to any IPTSP number. Free App-to-App audio/video calling, instant messaging, media and file sharing. Subscribe to various attractive packages, recharge from bKash or MiME wallet. Balance transfer to other Kothon accounts. No expiry date for the account balance. Contact Support Details: Hot Line: 16676 Hot Line: +8809609006463 Email: info.mime@cg-bd.com 15th Floor, Awal Center, 34, Kemal Ataturk Avenue, Banani C/A, Dhaka-1213 Privacy Policy: https://www.mimebd.com/privacy-policy T&C : https://www.mimebd.com/terms-conditions Website: https://www.mimebd.com/
Screenshots
Verdict
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.
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.
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.
| Parameter | AbtoVoIPClient | Kothon |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 3.5 (4 ratings) |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 183 MB |
| Age rating | 4+ | 4+ |
| Developer | Sviatoslav Volodymyruvych Litynsky Private Enterpreneur | CONFIDENCE GROUP OF INDUSTRIES LTD. |
Customer experience
AbtoVoIPClient
Kothon
In-app purchases
AbtoVoIPClient
No in-app purchases
Kothon
No in-app purchases
