anon(1019781)
Active member
I find that IMO works well on all platforms including a PC browser covers Facebook msger ICQ Skype gtalk and more. It merges all chats into one unified msger
WhatsApp is my personal favorite. Works on Android, iOS and Blackberry I believe. I know for a fact it works on Android and iOS as this is what me and my wife use and I use an iPhone 4s as well as an HTC EVO 4G LTE. She uses a Samsung Epic 4G Touch.
I recommend both of these solutions for BOTH Android and iOS users as a way to talk to one another. They're probably the 2 best solutions out there for such a thing.