If your circle of friends uses different phones then this app might help you communicate smoother. Mobi Voip is an Android cross-OS instant messaging. With this, an android user can now send SMS to an iPhone or even Blackberry user. You can even make VoIP Calls via Wifi, 3G / 4G, edge or UMTS.

Sign up with a breeze using your mobile number as your user ID. Inviting your friends to your phonebook contacts is also made easy with our automatic buddy list creation.

Get it now on Google Play Store.