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
TomQJones
Feel confident and comfortable with what your saying. Encryption works people. That's why so many want to stop it. Encryption apps might be banned from the App Store at some point so until then enjoy your freedom and say what you want with knowing only you and your intended recipient is viewing your info.
nevrikos
App not connecting to internet on an iPhone 6S, running iOS 10.2, using T-Mobile. Please fix or send a solution.
waterlemonmelon
I like this messenger for security, privacy and anonymity. One feature i want - message burn timer (like in Signal or Telegram)
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Threema offers the best security of any encrypted messaging app available! Not only is it based in the pro-privacy country of Switzerland, but it has also been comprehensively audited by a reputable Swiss security firm and found to have no vulnerabilities. The other great thing that makes it unique is that only you have access to your private key and you can exchange public keys directly with friends and family, which proves the identity of your contacts. This robust authentication protects your communications to a greater degree than similar apps. For more confirmation, check out past Security Now podcasts for why Threema is the best messenger you can get. If you are looking for a messaging app that gets security right, look no further than Threema.
DJJaxe
I am very security oriented and I enjoy this app. I do agree that no being able to backup more than 20MB is frustrating, but the privacy and security is worth the wait for that to be fixed. I also enjoy that this app can be separately locked unlike just about all of the other messengers out there. And I like that the accounts are NOT going to get purged if they are over a year old and have no activity.
dforvendetta
I love this app and love the focus on security. It's recently become one of my favorite apps and I want to convince more people to use it.
greener2009
The application offers anonymity and security. It does not link to a phone number or email. It uses a separate key.
kingfish66
Audio sounds great but there's two things that ruin the app for me first is no Bluetooth support, yea that Bluetooth headset will not record for this app, you can listen on Bluetooth but you can transmit using it, the second thing is no continuous playback, I'm in a group that posts a lot and I'm an interstate trucker so the idea of clicking on every message to listen to it is to distracting while driving and extremely time consuming, fix those two issues and I'm in for 5 stars