The best alternatives to Zendo are Telegram Messenger, Signal 2.0, and Stealthy. If these 3 options don't work for you, we've listed a few more alternatives below.
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Stealthy messages are encrypted before leaving your phone for true end-to-end encryption. It is decentralized, meaning your data is not stored on any servers and your messages go directly to your friends--no mi...
Threema is the world’s best-selling secure messenger and keeps your data out of the hands of hackers, corporations, and governments. Threema can be used completely anonymously, allows to make end-to-end encrypt...