The XMPP client for iOS 
Siskin IM by Tigase, Inc. is a lightweight and powerful XMPP client for iPhone and iPad.
Siskin IM is easy to use and lightweight XMPP client. It has support for file and image sharing, group chats, end-to-end encryption and many more.
When looking for support, please first search existing issues and pull-requests. If you didn't find an answer in the resources above, feel free to submit your question as new issue on GitHub.
Sikin IM may be downloaded from the App Store.
WARNING: Testing version of the Siskin can be unstable and cause data loss, you are using it at your discretion.
To sign up to TestFlight beta testing please use following link: https://testflight.apple.com/join/zDSl1D3s to join the testing program.
After installation of Siskin IM it will suggest you to add or register the XMPP account, which you should do. After that you can start chatting with your friends using your XMPP account.
Official Tigase repository is available at: https://github.com/tigase/siskin-im/.
Copyright (c) 2004 Tigase, Inc.
Licensed under GPL License Version 3. Other licensing options available upon request.