Viber
On all platforms, Viber provides end-to-end encryption. The app was created in Israel and is currently owned and operated by the Japanese e-commerce giant Rakuten. It has many of the same features as Telegram, such as stickers and communities, and, more recently, augmented-reality filters to spice up selfies.
A useful feature of Viber is a color-coded lock indicator that shows users how secure a chat is (gray for encrypted communications, green for encrypted communications with a trusted contact, and red in the event that there is an issue with the authentication key). Viber includes self-destructing Secret Chats, which may be used in group chats, as well as a Hidden Chats option for concealing chatrooms on a shared device.
All of this is in addition to Viber's robust mobile-messaging feature set, which includes text, voice, and group messaging, all of which are attached to your phone number. The software and interactions with other Viber users are free, however calls to non-Viber users are not.
Detailed information:
Self-Destructing Messages: No
Data Stored: Metadata Only
Website: https://www.viber.com