Download iChat for iOS devices
Go to AppStore. Search the iChat Messaging App and tap Get if it is free, Tap Install when the icon switches then enter your Password or use Touch ID when prompted.
Wait for the download to finish.
Download iChat for Android devices
Go to the Google Play. Search and tap for iChat Messaging. Tap download and follow the onscreen instructions, then wait for the App to be installed.
- Android OS 2.3.3 or above
- Unlimited internet data plan recommended
- Tablet devices are not supported