Secure messenger with end-to-end encryption

Bring real-time connection with your friends and colleagues to a new level! Lightning-fast and extremely secure. Exchange messages, multimedia, files, make audio- and video-conferences – and we'll keep all of your data safe.

Features & benefits:

Free messages & calls to everyone, everywhere;
Group chats: create, invite others, enjoy!
Calls and video calls: let your beloved ones always stay close;
Group calls: a convenient way to quickly contact your colleagues, hang out with friends and family!
Share your location so that others can reach you;
Have fun with our great sticker collection;
Share photos and videos quickly and safely;
Protect your privacy with military-grade encryption technology;
Oktos is absolutely free and contains no ads.

Everyone has secrets, and Oktos can keep them. Your privacy is our priority!

What’s New

Version 11.600.2

Major bugs leading to app crashes fixed in audio playback, push notifications, search, and QR-code scanner. Minor UX/UI improvements in video conferences, group chats, channels.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, IMMERGION LTD, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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