Pandion is described as 'open source instant messaging client for XMPP networks'. There are more than 10 alternatives to Pandion for a variety of platforms, including Windows, Linux, Mac, BSD and Android. The best alternative is Pidgin, which is both free and Open Source. Other great apps like Pandion are IM+ (Freemium), Psi (Free, Open Source), Messenger for Desktop (Free, Open Source) and Spark (Free, Open Source).
- Sim-IM, Simple Instant Messenger, is a multiple protocol instant messenger for MS Windows, GNU/Linux, FreeBSD. Sim-IM supports Jabber/XMPP, Google Talk, ICQ and AIM (Oscar), Yahoo! View 55 alternatives to Sim-IM
The project is no longer developed. Last versions for Windows and Linux date back to 2008, but they can be still downloaded from the official website.
- Free • Proprietary