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Threema. The Secure Messenger

Threema. The Secure Messenger

Secure. Anonymous. Private.

698 ratings
641 reviews
#1 in paid Social Networking
🔧 Utilities
🌐 Social Networking
$6.99

Details

  • Released
  • Updated
  • December 28, 2012
  • August 25, 2026

Features

Developer

Threema GmbH
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Threema. The Secure Messenger screenshot #1 for iPhone
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Threema. The Secure Messenger screenshot #8 for iPhone
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ipad
📈no. 90
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Reviews summary↘︎
⭐641
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Alternatives↘︎
🎪3 available
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❓5 answered
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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 698 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
+1

What's New in Threema. The Secure Messenger

7.3.2

August 25, 2026

• Various improvements and various 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

Social Networking

The app has maintained its position at 1 recently.

Last updated on August 28, 2026.

Top Paid

📈 90+2

Global

This app rose +2 positions in Global chart.

Last updated on August 28, 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

Megge

Great app, no incredible!
xgfdshxgfdsh

Easily one of the worst paid app I ever used

I don’t know how an app can be so buggy and unpredictable in this age. And this is a paid app for God’s sake! It’s easily one of the worst paid apps I have ever used. Always something or the other.. it doesn’t connect.. those red and orange lines at the top. Have to restart so frequently. Honestly surprised how this is still on the AppStore. Very frustrating user experience.
Show more
MadRadRickMadMadRadRickMad

Issues

So many issues for a paid app.
ths1969!!!ths1969!!!

The best, the safest messenger you ever need

Compared to all the other main companies and their messengers , multimedia platforms.This one is the only one what really gives you privacy and peace of mind!
JomantJomant

A

Amazing
😘😍Send6862😘😍Send6862
See 636 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.