Security & privacy tools / Threema
Threema
The secure instant messenger from Switzerland. GDPR-compliant messaging for individuals and organizations that value privacy, security and data protection.
Where it stands
4.2 / 5
Signals score
Not a hands-on test
Based on 2 of 3 signals
- Website health5 / 5 · weight 50%
Measured from the tool's public website
- Facts stated4.2 / 5 · weight 30%
How many of the five facts the tool's own pages state
Built only from what we can measure or quote without using the tool. How ranking works
Rank by signals
We have not run our own hands-on test on Threema yet. Facts checked 2026-11-01. How tests work
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
Should you use Threema?
A quick read built only from what the tool's own pages state and from our tests, not from opinion. Facts checked 2026-11-01.
A good fit if…
- You want to use it without creating an account. Its own pages say none is needed.
- You want a free option. It states: “Private app is a one-time purchase; a free option is not stated. A Professional work plan shows a Try for free button; trial…”
Check first
Nothing to flag from what we know.
Does: Secure messaging
Measured signals
5 / 5 · measured 2026-11-08Read automatically from Threema's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured
- Reliability5 / 5The page answered and finished downloading in 487 ms.
- Security5 / 55 of 5 protective headers set (strict-transport-security, content-security-policy, x-content-type-options, referrer-policy, x-frame-options).
- Privacy5 / 5No third-party tracking services found on the page.
- Transparency5 / 5Links a privacy policy; links a pricing page.
Community feedback
We found no public discussion of this tool to read.
A score needs at least 12 different commenters across 2 threads.
- Free tier
- Private app is a one-time purchase; a free option is not stated. A Professional work plan shows a Try for free button; trial length not stated.
- Paid plan
- Private: 6.00 one-time (depends on app store and country). Core work plan 3.00 per user and Professional 5.00 per user, billed monthly per user with an annual payment option. OnPrem custom. Currency selector CHF/EUR/USD; currency symbols not shown.
- Signup
- No phone number or email address is required to use Threema; users get a Threema ID.
- Watermark
- Not applicable.
- Where files go
- Page says messages are removed from Threema's servers right after delivery and connection details are not logged. Group membership data stays on users' devices.
From the tool's own pages, checked 2026-11-01. Sources: Pricing, Privacy. Prices and limits change; check the tool before you rely on them.
Get an email if Threema changes
We check its official pages every week. If they change, we tell you, so you can see if the price or limits moved. No other email, and one click stops it.
Are you the maker of Threema? Link to this page
Copy this into your site. The link goes to this page, and it does not change any score.
<a href="https://agathox.com/tools/threema">Threema on agathox: compared and tested</a>
Tasks and scores
- Secure messagingNot tested yet
Similar tools
Top signals in Secure messaging.
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