After I tried a few Messenger Apps with my Galaxy (Android) I can say that this was by far the worst. Every few days runs the session and you can not easily log back in, but has the application data (cache, etc.) to manually delete from the Applications Manager or install the app before you can even re-use again.
Otherwise there are the usual features: Videos and photos can be recorded and sent directly from the app with the camera. Voicemails are unfortunately not possible. You can customize the alerts, but not total off more than 24 hours continuously.
