Threema. The Secure Messenger Apk

Threema. The Secure Messenger Apk

Latest version 5.8.2
04 May 2025

Older Versions

Apk Infos

Version5.8.2
Rating4.2/5, based on 73,969 votes
Size‎40.9 MB
Requires AndroidAndroid 5.0+ (Lollipop)
Author's NotesThreema is the messenger with the most consistent focus on security and privacy.

About Threema. The Secure Messenger APK

Threema. The Secure Messenger APK Download for Android
Threema. The Secure Messenger APK Download for Android

Description

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
• 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 with the poll feature
• 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

Latest updates

What's new in version 5.8.2

- The Android app can now be used with the beta version of Threema 2.0 for desktop (“Main menu > Threema 2.0 for desktop (beta)”)
- Fixed various bugs that could occur when searching within a chat
- Display the correct name of a PDF file
- Improved notification of 1:1 calls
- Improved memory consumption when restoring large data backups

How to install Threema. The Secure Messenger APK on Android phone or tablet?

Download Threema. The Secure Messenger APK file from ApkClean, then follow these steps:

Update Phone Settings

  • Go to your phone Settings page
  • Tap Security or Applications (varies with device)
  • Check the Unknown Sources box
  • Confirm with OK

Go to Downloads

  • Open Downloads on your device by going to My Files or Files
  • Tap the APK file you downloaded (ch.threema.app-v5.8.2-ApkClean.apk)
  • Tap Install when prompted, the APK file you downloaded will be installed on your device.

Older Versions

5.8.2 (3001052)40.9 MB

Questions & Answers

Q: What is an APK File?

A: Just like Windows (PC) systems use an .exe file for installing software, Android does the same. An APK file is the file format used for installing software on the Android operating system.

Q: If I install an APK from this website, will I be able to update the app from the Play Store?

A: Yes, absolutely. The Play Store installs APKs it downloads from Google's servers, and sideloading from a site like ApkClean.net goes through a very similar process, except you're the one performing the downloading and initiating the installation (sideloading).
As soon as the Play Store finds a version of the app newer than the one you've sideloaded, it will commence an update.

Q: Why ApkClean.net can guarantee APK 100% safe?

A: Whenever someone wants to download an APK file from ApkClean.net, we'll check the corresponding APK file on Google Play and allow user download it directly (of course, we'll cache it on our server). If the APK file does not exist on Google Play, we'll search it in our cache.

Q: What are Android App permissions?

A: Apps require access to certain systems within your device. When you install an application, you are notified of all of the permissions required to run that application.

Don't hesitate to contact us if you have any questions or concerns.

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User's Reivew

1 ★Ich verwende Threema ausschließlich zum Telefonieren mit der Familie im Ausland, und monatelang hat es perfekt geklappt. Aber seit etwa zwei Wochen ist es nicht mehr zu gebrauchen, auch nach der gestrigen Aktualisierung. Es klingelt nicht mehr, und ich kriege nur irgendwann eine Benachrichtigung über verpasste Anrufe, und meine Freunde sagen dass nichts passiert wenn sie mich anrufen, und rufen mich dann über WhatsApp an, was immer klappt. Steige jetzt schweren Herzens wieder um. Sehr schade.
5 ★Secure, from Switzerland. 👌🏻
5 ★Quite, no noncense. Just what is needed and no more
5 ★Excellent choice - from Europe
5 ★Just amazing
5 ★secure and European
1 ★Calls never work! What's the point of this being secure when it doesn't work?
2 ★Desktop and Web clients does not allow you to edit a message after it was sent, while mobile app does. Why? The mobile app does not support voice typing! WHY? EVERY other messaging app supports voice typing! You cannot watch a video inside the app on a desktop! You need to download it to your hard drive first! Terrible! A paid app doesn't have what free ones have! The only reason to use this app is because it doesn't ask for your email and/or phone number, otherwise it's nothing special.
1 ★Seit zwei Wochen zickt Threema herum. Nimmt keine Verbindung auf (roter Balken) egal ob Wifi oder Data. Oder Verbindung steht, aber nur Text senden funtioniert; Fotos und Dateien werden nicht versendet, egal ob Wifi oder Data. Sehr nervig ist das Aufrufen von längeren Texten in einem neuen Screen. was soll das? Besonders beim Antworten nervig. Warum werden lange Messages gesplittet in mehreren Messages? Ist ja nicht SMS. Sehr nervig!
5 ★excellent 👌