Good app; REALLY bad flaw that needs to be fixed immediately

I like this app, but the current version has a serious bug. Threema works with a passcode and Touch ID, and can easily back up the chat and the last 20MB of media via email.

However it seems in the newest update a REALLY bad flaw is introduced: if you are running Threema and double-click the Home button and go to another app, double-clicking the Home button again still shows the last image of the Threema chat.

I hope the developers will immediately issue an update to fix this incredibly bad flaw, because Threema is a really well-designed app otherwise!!

Five stars when this terrible bug is fixed. : )

jesscXC about Threema. The Secure Messenger