With threema voice messages you can finally chaten encrypted. Unfortunately, the app is not yet very widespread, since all still use Whatapp. The Acquisition of facebook and the absolute data storage have to upgrade me persuaded. Now I have no longer as many chat partner, but no one can read my chats Unauthorized. The functions are also ok because you can download a voice control package, for example. Images and movies also can be placed. For me, a strong buy recommendation.
