Security & privacy tools / Signal
Signal
Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.
Where it stands
3.5 / 5
Signals score
Not a hands-on test
Based on 2 of 3 signals
- Website health3.8 / 5 · weight 50%
Measured from the tool's public website
- Community3.6 / 5 · weight 20%
What people said in public discussions
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 Signal yet. 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.
Measured signals
3.8 / 5 · measured 2026-11-08Read automatically from Signal'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 78 ms.
- Security3.5 / 52 of 5 protective headers set (x-content-type-options, referrer-policy).
- Privacy5 / 5No third-party tracking services found on the page.
- Transparency1 / 5No privacy policy linked; no pricing page linked.
Community feedback
3.6 / 5 · 42 commenters71% of the 42 people whose comments we could classify were positive. Read automatically from public Hacker News threads about Signal; the classifier is simple and can misread sarcasm, so check the threads. How this works
- Positive
“I haven't moved any friends in the last week, but I've gotten lots of notifications in Signal of many friends joining this week. Hopefully it just requires some simple modifications of some parts of their infra that they…”
Read in the thread - Positive
“I too wish Signal engineers good luck. (Even if I personally mostly use Telegram and hope for Matrix to "win", Signal is a fantastic piece of software as far as I can see, both as an extremely secure (I think) messaging…”
Read in the thread - Critical
“I've been using Matrix for maybe a year now with a group of techie friends and I would definitely not recommend it for my family members (who I just onboarded from Whatsapp to Signal the other day). Just look at this:…”
Read in the thread - Critical
“That being said, why does Signal still require a phone number in the first place. Exactly, because when needed, it will be used to be linked back to your real identity, it has nothing to do with spam or anything, Signal…”
Read in the thread
Threads: Privacy is priceless, but Signal is expensive (2023, 906 comments) · Keep your phone number private with Signal usernames (2024, 872 comments) · Signal is having technical difficulties (2021, 720 comments) · Grand jury subpoena for Signal user data, Central District of California (2021, 580 comments)
Listed, not yet tested
This tool answered when we visited its site on 2026-11-10. The description above is the tool's own. We have not tested it or recorded facts about its limits, pricing or privacy, so it has no score. Are you the maker? Claim this listing to correct details and request a test.
Are you the maker of Signal? 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/signal">Signal on agathox: compared and tested</a>
Tasks and scores
- Secure messagingNot tested yet
Similar tools
Top signals in Secure messaging.
Something wrong or out of date on this page? Tell us and we will fix it.