Threema. The Secure Messenger Application icon

Threema. The Secure Messenger 5.2.4

1 MB / 5M+ Downloads / Rating 4.1 - 72,488 reviews


See previous versions

Threema. The Secure Messenger, developed and published by Threema GmbH, has released its latest version, 5.2.4, on 2024-03-21. This app falls under the Communication category on the Google Play Store and has achieved over 5000000 installs. It currently holds an overall rating of 4.1, based on 72.488 reviews.

Threema. The Secure Messenger APK available on this page is compatible with all Android devices that meet the required specifications (Android 2.3+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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App Screenshot

App Screenshot

App Details

Package name: ch.threema.app

Updated: 11 months ago

Developer Name: Threema GmbH

Category: Communication

New features: Show more

Installation Instructions

This article outlines two straightforward methods for installing Threema. The Secure Messenger on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

App Rating

4.1
Total 72,488 reviews

Reviews

1 ★, on 2021-06-14
Have been using Threema for several years now; more or less. There was always reason to leave Threema. Right now it's like that again. I have noticed for days that messages are sometimes delivered with an extreme delay. That's why I used Threema Web today. Not a single one of these messages reached the chat partner and cannot be found in the app. THAT'S RIDICULOUS! Safe, but useless. Support: ridiculous response times (several days).

3 ★, on 2021-06-25
The app in general is quite good and feels secure. I'm no IT security expert so cannot really verify 😊. Unfortunately, messages and particularly images take a long time to be delivered and sometimes they don't get delivered at all! When sending a single image, the issue only occurs rarely but when sending multiple images at the same time, the issue occurs almost always!

1 ★, on 2021-06-26
Useless. Voice messages will not play while in the background like all other chat apps can do. All possible measures have been taken to whitelist, turn off battery optimisation settings, etc.. Threema refuses to play messages in the background. Reinstalling the app is a hassle so I'm forever needing to make new accounts. Poor decision to get this app, also no one uses it, so you still need to use other chat apps anyway.

3 ★, on 2021-06-09
Subpar multi device experience compared to other services. If you want to use Threema on your desktop you will have a bad experience, if your phone has a bad connection it will fail to show and send your messages on your PC, if you phone has a GOOD connection it will still fail sometimes because it doesn’t work 100% of the time when the app is running in the background on your phone (Even when disabling energy saving for the app). The app itself is amazing and works great if you are using it only on the phone. But please, please, add proper multi device support, other services like Matrix/Element (This one has P2P encryption!) and Telegram (Without P2P encryption) have seamless switch between devices and don’t rely on your phone’s connection, and now even WhatsApp will add multi device support!

5 ★, on 2021-06-09
Currently Threema users are unable to change their Threema ID, akin to changing a mobile number in WhatsApp, and inform all or select contacts of the change. There is a growing request for 'Sent Message Recall' / 'Ephemeral Messages' and having a 'Schedule Send' feature for messages (images, text and video), on a particular date and time will be a big boost. Hope the above are considered and provided. Thanks.

5 ★, on 2021-05-24
Best messaging app preiod. Better than Signal as it is more secure and has more features. I whish more people was using this - I think it might be the name. Signal is a catchier name. I like the fact that you're paying for it and most of all their transparency policy. Whish: If you could install the app on several devices (and same profile) you would distinguish yourself from the competition. Thank you!

Previous Versions

Threema. The Secure Messenger 5.2.4
2024-03-21 / 1 MB / Android 2.3+

About this app

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 you 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
• 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 with the poll feature
• Choose between a dark and a light theme
• Quickly and silently reply with the unique agree/disagree feature
• 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

New features

- Added a highlighter pen function to image editor
- Support for animated WebP images
- Numerous optimizations and bug fixes