Free resources · Tool review
Why I advise you to switch to Signal
I help small organizations pick tools they won’t regret. When the subject is messaging, my advice is almost always the same: use Signal. Here’s the honest case for it, tradeoffs included.
I don’t recommend tools because they’re popular. I recommend them because of how they treat the people who use them. Signal is the rare messaging app I can put in front of a client without a list of caveats about who else is reading along.
What Signal is
Signal is a free messaging app for your phone and computer, the same shape as WhatsApp or iMessage. The difference is underneath. It’s run by a nonprofit, the Signal Foundation, with no ads and no business in your data. Every line of its code is public, so security researchers can check that it does what it claims.
Why it’s the one I recommend
Plenty of apps encrypt your messages now, including WhatsApp and Messenger, so encryption alone isn’t special. What sets Signal apart is what it does not keep. It doesn’t build a record of who you talk to, when, or how often. That trail, the metadata, is often more revealing than the words in the message. On the three things that actually separate a private messenger from a marketing one, protecting metadata, being open to inspection, and not being owned by an advertising company, Signal is the only mainstream option that does all three.
I put the full side-by-side in the messaging guide. See the comparison chart for how Signal stacks up against texts, WhatsApp, Messenger, Telegram, and iMessage.
The honest tradeoffs
- You need a phone number to sign up. Signal added usernames so you don’t have to hand your number to strangers, but registration still uses one.
- It only helps if the other person has it. A private app you use alone isn’t private. Expect to invite the handful of people you talk to most.
- It isn’t magic. If someone has your unlocked phone, no app can save you. Signal protects the message in transit and on the device, not a borrowed screen.
How to start
- Install Signal on your phone, then link the desktop app so you can type from your computer.
- Invite your inner circle. Suggest it for anything you’d rather not see on a billboard.
- Turn on disappearing messages for sensitive threads so old conversations don’t linger on either phone.
My verdict
Switch. Signal asks very little of you and protects more than anything else in its class. For most people and most small teams, it’s the easiest privacy upgrade you can make this week.
New to all this? Start with the plain-language guide: Private messaging: what to use instead of texts, WhatsApp, and Messenger.
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