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Threema. The Secure Messenger

Threema. The Secure Messenger

Secure. Anonymous. Private.

703 ratings
647 reviews
#1 in paid Social Networking
🔧 Utilities
🌐 Social Networking
$6.99

Details

  • Released
  • Updated
  • December 28, 2012
  • August 31, 2026

Features

Developer

Threema GmbH
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📈no. 56
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About

This secure messenger prioritizes privacy with end-to-end encryption for all communications. It uses a unique ID instead of personal information, leaving no data trail and offering anonymous use. Enjoy private chats, calls, and file sharing without ads or trackers.

✓End-to-end encrypted chats and calls
✓Anonymous use with Threema ID
✓File sharing in all formats
✓Edit and delete sent messages
✓Desktop app and web client
✓Group creation and polls
Show original description

What users say

Summarized from real user reviews of Threema. The Secure Messenger. Based on 703 reviews and a 4.2/5 average, it highlights the 6 positives and 6 negatives reviewers mention most about this Social Networking app.

Positive things

  • 🔒Secure messaging
  • 👍Easy to use
  • 🚀Fast and reliable
  • 💡Anonymous ID instead of phone number
  • 🔒Based in privacy-friendly Switzerland
  • 👍Clean and polished interface

Negative things

  • 🐛Unreliable video/voice calls
  • 🐛Inconsistent notification delivery
  • 🐛Bugs and crashes after updates
  • 🔒Lack of auto-delete/expiring messages
  • 👎Limited emoji/reaction options
  • 🐛Difficulty transferring data to new devices
See all reviews

What's New in Threema. The Secure Messenger

7.3.3

August 31, 2026

• Fixed a bug that could cause the app to freeze upon launch Threema 7.3.2 • Various improvements and bug fixes Threema 7.3.1 • Fixed a crash that could occur during 1:1 calls • Fixed a bug in relation to forwarding messages • Other improvements and various bug fixes Threema 7.3 • Various UX improvements • Improvements in relation to the logging system • Improved video converting when “Original” is selected as the quality • Memory and performance improvements when handling large files • Improvements in relation to Threema calls • Fixed a bug in relation to group chat notifications • Fixed a possible bug that could occur when encoding URLs • Fixed a bug in relation to voice messages • Other improvements and various bug fixes

More

Charts

Top Paid

📈 1+1

Social Networking

This app rose +1 position in Social Networking chart.

Last updated on September 17, 2026.

Top Paid

📈 56+13

Global

This app rose +13 positions in Global chart.

Last updated on September 17, 2026.

Events

Read more about Emoji reactions are here!
Event EndedMajor Update

Emoji reactions are here!

React to Threema messages with emojis.

Feb 17, 2025 — Mar 20, 2025

Read More

Read more about Try the new desktop app
Event EndedMajor Update

Try the new desktop app

You can now link up to two computers

Nov 4, 2024 — Dec 5, 2024

Read More

Read more about Bye-Bye Typos in Threema
Event EndedMajor Update

Bye-Bye Typos in Threema

Sent messages can now be edited and deleted

Aug 12, 2024 — Sep 12, 2024

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

Absolutely brilliant

Secure , well built UI, reliable
Theodore SchwarzkopfTheodore Schwarzkopf

Wish Americans would WTFU!

3ma is great. Way better than either whatsapp or signal or telegram…. Eons better. But Americans would rather stake themselves as the internal colonially displaced subjects whose existence is permitted insofar as it relates to the economic system of capitalism alone.
nyagrodhanyagrodha

The best

Muy fácil de usar
CurroRimacCurroRimac

If I could give it 0 stars I would

The app constantly takes 30 minutes or more just to deliver a message, and many times just disconnects from the network for no reason.
BNetanyahuBNetanyahu

Missing self-destructing messages like in Signal, WhatsApp, Telegram, Session, Wickr, SimpleX.

We’re living in 2025 and Threema still doesn’t have self-destructing messages.

Feature request: Add self-destructing messages.

Edit: Useless messenger with no self-destructing messages even in 2026
OnlyJudasOnlyJudas

Response from developer

Thank you for taking the time to write down your suggestion. We’re happy to review it as part of our internal evaluation process. Although there are currently no disappearing messages, it is possible to edit and delete messages manually. You can find more information about that feature here: https://threema.com/faq/editdelete

See 642 more reviews

Developer apps

Threema Work. For Companies
Threema Work. For Companies

Secure Business Messenger

🌐 Social Networking

(27)

Free
Threema OnPrem
Threema OnPrem

Self-Hosted Business Messaging

🌐 Social Networking

(2)

Free
See developer apps

User experience

🐞

Reported Bugs

5 issues

Messages not sending or receiving

Bug

App freezing or crashing

Bug

Unreliable video/voice call functionality

Bug

Notification issues after updates

Bug

Data transfer problems when switching devices

Bug
✨

Requested Features

6 requests

Add auto-delete/expiring message option

Feature

Improve video/voice call reliability

Feature

Enhance notification system

Feature

Expand emoji/reaction options

Feature

Simplify data transfer to new devices

Feature

Add iPad/desktop app support

Feature

FAQ

What is Threema?

Threema is a secure messenger designed with privacy and data protection in mind. It offers end-to-end encrypted text and voice messages, calls, and file sharing. It uses a unique Threema ID for identification, allowing for anonymous use and leaving no data trail.

How does Threema ensure security and privacy?

All communications on Threema are end-to-end encrypted. It is open source, undergoes regular audits, and its servers are located in Switzerland. It does not require a phone number or email address, and messages are deleted from the server immediately after delivery.

Is Threema free to use?

No, Threema is a paid application. This model allows the developers to focus on privacy and security without relying on ads or data collection. The one-time purchase provides access to all features.

What devices is Threema compatible with?

Threema is available for mobile devices and also offers a desktop app and web client for convenient chatting on your PC. This ensures you can communicate securely across multiple platforms.

What are the main use cases for Threema?

Threema is ideal for anyone who wants to communicate privately and securely. This includes individuals concerned about data privacy, journalists communicating with sources, or anyone who prefers to avoid having their personal information linked to their messaging activity.