When comparing Rocket.Chat vs Contus Fly, the Slant community recommends Rocket.Chat for most people. In the question“What is the best team chat software?” Rocket.Chat is ranked 6th while Contus Fly is ranked 18th. The most important reason people chose Rocket.Chat is:
Rocket.Chat is available for free. It's licensed under the MIT license with source code available on [GitHub](https://github.com/RocketChat/Rocket.Chat).
Ranked in these QuestionsQuestion Ranking
Pro Free and open source
Rocket.Chat is available for free. It's licensed under the MIT license with source code available on GitHub.
Pro Native apps for all major desktop and mobile platforms
Rocket.Chat has native apps for macOS, Windows, Linux, iOS and Android.
Pro Very active and helpful community
Pro Supports a wide variety of authentication methods
In addition to the usual email / username + password combination, Rocket.Chat supports authenticating via Facebook, Github, Gitlab, Google, Linkedin, Meteor and Twitter accounts.
Pro Video conferencing support
Rocket.Chat supports video calls.
Pro Will allow for anonymous use
Contus Fly has quick scalability applications from few users to lakhs of users. It performs simultaneously to communicate with the user with online presence.
Pro On Cloud
Host data on a cloud server or on your own premises servers to scale up your instant messaging mobile app's accessibility and scalability.
Pro High Profile Technology Stack
Build your chat app with solution powered by Ejabbered, Erlang, Amazon Web Services, MySQL, and much more under the hood.
Hyper-accommodative for quick customizations, scalability, technology updates and integrations.
Con No way to block new registrations
Without the ability to disable registrations, there's no way to control access to the chat.
Con Group video conferencing
Communicating with a group using video calls on the chat app is an extra feature. You need an upgrade in group video conferencing.