Threema. The Secure Messenger

Name: Threema. The Secure Messenger
Price: 5.99 USD
Rating: 4.3 (583 reviews)
Author: Threema GmbH

Secure. Anonymous. Private.

$5.99

583 Ratings
Ages

4+
Years
Category

Social Networking
Developer

Threema GmbH
Language

EN
+ 20 More
Size

103
MB

Threema is the world’s best-selling secure messenger and keeps your data out of the hands of hackers, corporations, and governments. The service can be used completely anonymously. Threema is open source and offers every feature one would expect from a state-of-the-art instant messenger. The app also allows to make end-to-end encrypted voice, video and group calls. Using the desktop app and the web client, you can also use Threema from your desktop. PRIVACY AND ANONYMITY Threema is designed from the ground up to generate as little data on servers as possible. Group memberships and contact lists are managed on your device only, and never stored on our servers. Messages are immediately deleted after they have been delivered. Local files are stored encrypted on your mobile phone or tablet. All this effectively prevents the collection and misuse of your personal information, including metadata. Threema is fully compliant with the European privacy legislation (GDPR). ROCK-SOLID ENCRYPTION Threema end-to-end encrypts all your communication, including messages, voice and video calls, group chats, files, and even status messages. Only the intended recipient, and nobody else, can read your messages. Threema uses the trusted open source NaCl cryptography library for encryption. The encryption keys are generated and safely stored on the users’ devices to prevent backdoor access or copies. COMPREHENSIVE FEATURES Threema is not only an encrypted and private messenger but also versatile and feature-rich. • Write text and send voice messages • Edit and delete sent messages on the recipient’s end • Make voice, video and group calls • Share videos, pictures and locations • Send any type of file (PDF, animated GIF, MP3, DOC, ZIP, etc.) • Use the desktop app or the web client to chat from your computer • Create groups • Conduct polls • Choose between a dark and a light theme • React to messages with emojis • Verify the identity of a contact by scanning their personal QR code • Use Threema as anonymous instant messaging tool • Synchronize your contacts (optional) SERVERS IN SWITZERLAND All our servers are located in Switzerland, and we develop our software in-house. FULL ANONYMITY Each Threema user receives a random Threema ID for identification. A phone number or email address is not required to use Threema. This unique feature allows you to use Threema completely anonymously – no need to give up private information or to open an account. OPEN SOURCE AND AUDITS The source code of the Threema app is open for everyone to review. On top of that, renowned experts are regularly commissioned to conduct systematic security audits of Threema’s code. NO ADS, NO TRACKERS Threema is not financed by advertising and does not collect user data. SUPPORT / CONTACT For questions or problems please consult our FAQs: https://threema.ch/en/faq

Ratings & Reviews

4.3

out of 5

583 Ratings

Good, but buggy
12/18/2022

ThunderousMcKnob
Has a lot of good features, and works a majority of the time, but has quite a bit of bugs. One of the bugs it has is that sometimes, during a video call, I begin to hear an echo of my voice. Once I end the call and reestablish a new connection, the echo goes away. Another issue just arose when I got 16.2, which is I won’t be able to hear the person I’m having a video chat with through speaker, but shutting the app down helps. Also has other bugs such as not given the option to use the camera unless I hold down on the users name from the contact list which will then give me the option to take a photo. There are a few more, but I could be here for a while. Just hoping some of these things can get resolved because they are quite annoying. That said, good app overall.

Developer Response
Thank you for your review! We’re happy to help, please contact our support team: help@threema.ch
Good, but buggy
12/18/2022

ThunderousMcKnob

Has a lot of good features, and works a majority of the time, but has quite a bit of bugs. One of the bugs it has is that sometimes, during a video call, I begin to hear an echo of my voice. Once I end the call and reestablish a new connection, the echo goes away. Another issue just arose when I got 16.2, which is I won’t be able to hear the person I’m having a video chat with through speaker, but shutting the app down helps. Also has other bugs such as not given the option to use the camera unless I hold down on the users name from the contact list which will then give me the option to take a photo. There are a few more, but I could be here for a while. Just hoping some of these things can get resolved because they are quite annoying. That said, good app overall.
Developer Response 12/20/2022
Thank you for your review! We’re happy to help, please contact our support team: help@threema.ch
Best messaging app for security
07/09/2018

G-Mo
If you want a pretty messenger, stick with the Messages app, Facebook, or maybe Signal - they’re all “secure”. If you want a secure messenger, get Threema. It sends messages securely from device to device, not user to user, so you need to think a bit differently about using it, but that difference in thinking is “this message is encrypted on my device and sent to that other device, which I’ve confirmed is the correct device by scanning its barcode”. This is handy (and one of my main uses) because you know that your snarky comment isn’t going to show up on your wife’s computer as she’s projecting her screen in the conference room at work. True device to device encryption, plus the company’s location in Switzerland with physical control over its servers, combines to make this a very secure messaging app. Even if you’re just using it to send snarky notes about employers, it’s worth the price.
Best messaging app for security
07/09/2018

G-Mo

If you want a pretty messenger, stick with the Messages app, Facebook, or maybe Signal - they’re all “secure”. If you want a secure messenger, get Threema. It sends messages securely from device to device, not user to user, so you need to think a bit differently about using it, but that difference in thinking is “this message is encrypted on my device and sent to that other device, which I’ve confirmed is the correct device by scanning its barcode”. This is handy (and one of my main uses) because you know that your snarky comment isn’t going to show up on your wife’s computer as she’s projecting her screen in the conference room at work. True device to device encryption, plus the company’s location in Switzerland with physical control over its servers, combines to make this a very secure messaging app. Even if you’re just using it to send snarky notes about employers, it’s worth the price.
Amazing! Would love updates
Apr 18

adrianisafreakingbeast101
Been using threema for some time now and it is a great anonymous app and amazing privacy! I would love it & think it could be beneficial if they added an update where if you send a sticker it doesn’t automatically send to the chat as soon as u press it from your keyboard but rather an update where it puts the sticker in your text bubble before you press send so that you can maybe add more stickers, emoji, or text etc. or even change the sticker your sending so that stickers are not ONLY able to be sent as large stickers singularly and separately. Bringing Imessage features more to the app , not even Instagram has this feature in their keyboard, this would separate threema from as a messaging app from the others on another level!
Amazing! Would love updates
Apr 18

adrianisafreakingbeast101

Been using threema for some time now and it is a great anonymous app and amazing privacy! I would love it & think it could be beneficial if they added an update where if you send a sticker it doesn’t automatically send to the chat as soon as u press it from your keyboard but rather an update where it puts the sticker in your text bubble before you press send so that you can maybe add more stickers, emoji, or text etc. or even change the sticker your sending so that stickers are not ONLY able to be sent as large stickers singularly and separately. Bringing Imessage features more to the app , not even Instagram has this feature in their keyboard, this would separate threema from as a messaging app from the others on another level!
Needs delete for everyone option & viewed option for received messages
07/15/2020

Jale71
I like Threema but was horrified to discover that one cannot delete messages for everyone. I did not realize that all messages would remain on the receiver’s phone. I get confused on Threema when I have listened to an audio message because there is no indication that I have already listened to it. A check or something would be nice. If there are many audio messages and one gets interrupted, then it is unclear where to start relistening again. I do not like the red while recording messages, it is very distracting to the eye. I would prefer a milder color. I also like that in WhatsApp I can type a reply in the reply box while listening to a message but that does not work in Threema. Otherwise, I like the clean design of Threema and the privacy.
Needs delete for everyone option & viewed option for received messages
07/15/2020

Jale71

I like Threema but was horrified to discover that one cannot delete messages for everyone. I did not realize that all messages would remain on the receiver’s phone. I get confused on Threema when I have listened to an audio message because there is no indication that I have already listened to it. A check or something would be nice. If there are many audio messages and one gets interrupted, then it is unclear where to start relistening again. I do not like the red while recording messages, it is very distracting to the eye. I would prefer a milder color. I also like that in WhatsApp I can type a reply in the reply box while listening to a message but that does not work in Threema. Otherwise, I like the clean design of Threema and the privacy.

Threema 6.8.7 • Various bug fixes and general improvements

Version 6.8.7

Oct 29

Data Linked to You

The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Diagnostics