Zom is described as ''s security and privacy features are powered by the amazing foundation created by the ChatSecure project, and works with other great apps like Conversations' and is a Encrypted Chat App in the Social & Communications category. There are more than 100 alternatives to Zom for a variety of platforms, including Android, iPhone, Android Tablet, Windows and iPad. The best alternative is Telegram, which is free. Other great apps like Zom are Signal (Free, Open Source), Element (Freemium, Open Source), Jitsi (Free, Open Source) and Tox (Free, Open Source).
Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as text messages on your phone.
ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. You can connect to your existing accounts on Facebook or Google, create new accounts on public XMPP servers(including via Tor), or even connect to your own server for extra security.