4/5 rating based on 156 reviews. Read all reviews for Threema. The Secure Messenger for iPhone.
Threema. The Secure Messenger is paid iOS app published by Threema GmbH
azpilot
I dont know when this happened but My friend cannot send to my ID Because my ID is not exactly 8 Chars. It seems it cannot be more or less than 8 chars which were valid at some point earlier in the software history. EDIT This works correctly after investigating it further they were using the nickname and not the threema id under my profile
bhataaqibm
I love the app very much. Privacy rules. But audio and video calls are so difficult. Call drops again and again. Have been sending those anonymous reports every time the call drops but hasn’t been fixed yet. I hope the devs work on this asap.
jhwd
I upgraded my phone and was unable to restore my credentials, even though I had them backed up to the Threema Server some time ago. I even carefully had store my backup password. I lost all the documents that my family had sent me and all their communications - very upset and deleted the app forever.
flyingsnowball
Signal and others allow one to have messages over a user-definable age automatically erase from the device. Please consider this feature request. It also allows for shrinking the amount of data backed up and helps keep conversations ephemeral.
Lawl3rZ
Boggles my mind that the Android version is more fully featured than the iOS version. Simply unacceptable. Also, iOS users shouldn’t be forced to use Safari when they want to use Threema Web. Not all of us also own a Mac.
satchnut
This could be the perfect secure messaging app if it were “fat-fingered perfectionist”-proof :D, as having to copy, delete, paste, edit, then resend just to “edit” a single sent message is so much hassle compared to just hitting an edit-button. For now I and my similarly fat-fingered perfectionist friends will be begrudgingly sticking with the less secure alternatives for now. If this is ever implemented, I will start recommending Threema, as otherwise the UX feels solid, better than Wire’s and even Signal’s. By the way, if the concern is with potentially allowing people to edit maliciously, maybe a mutual-consent-based “Allow editing of sent messages in chats” switch is an appropriate solution. Or perhaps just an “Edit history” list.
satchnut
This could be the perfect secure messaging app if it were “fat-fingered perfectionist”-proof :D, as having to copy, delete, paste, edit, then resend just to “edit” a single sent message is so much hassle compared to just hitting an edit-button. For now I and my similarly fat-fingered perfectionist friends will be sticking with the terrible, terrible Telegram. If this is ever implemented, I will start recommending Threema, as otherwise the UX feels solid, better than Wire’s and even Signal’s. By the way, if the concern is with potentially allowing people to edit maliciously, maybe a mutual-consent-based “Allow editing of sent messages in chats” switch is an appropriate solution. Or perhaps just an “Edit history” list.
Jay Van Quick
On the security side the application is very well executed. On the messaging side there are a few features that would be desirable to have; The ability to quote a picture. Read receipts on messages in group chats (who in the group has seen your message).