City of Hats is described as 'Secure messaging platform introducing a new concept called location-controlled messaging' and is a Encrypted Chat app in the security & privacy category. There are more than 25 alternatives to City of Hats for a variety of platforms, including Android, Mac, Windows, Linux and iPhone apps. The best City of Hats alternative is Signal, which is both free and Open Source. Other great apps like City of Hats are Telegram, Element, Matrix and Pidgin.
WeChat is a complete mobile communication and private social networking app. Free, cross-platform, and full-featured, WeChat is the best way to keep in touch with everyone you care about.
China
Chat with friends, start group chats and share all kinds of content. All of your messages and conversations are stored in Telegram's cloud.
United Kingdom
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.
United States
Pure instant messaging — simple, fast, secure, and synced across all your devices. One of the top 5 most downloaded apps in the world with over 1 billion active users.
Protect your communication in transit and on your phone. Silence (formerly SMSSecure) is a full replacement for the default text messaging application: all messages are encrypted locally and messages to other Silence users are encrypted over the air.
Plus Messenger is an messaging app that uses Telegram 's API. Plus Messenger has all of Telegram's features plus themes. Plus Messenger is free for android devices.
