Hello, is there a spark version for android and ios? If not can somebody suggest open source projects which run on both platforms?
We do not produce any clients on iOS or Android, but Spark and Openfire are implementations of XMPP. That means that they are compatible and should work with pretty much any XMPP client, of which there are several available on both platforms.
A software listing can be found here: XMPP | XMPP Software
I personally prefer the Conversations client on Android. I don’t use an iPhone, and have no recommendations for an iOS client.