TL;DR: Default end-to-end encryption is the baseline to look for — an app that only encrypts messages in an optional mode leaves most conversations unprotected unless you remember to turn it on every time.
End-to-end encrypted messaging apps ensure that only you and the person you're messaging can read the content — not even the app provider can access it.
What to Look For
Look for an app that uses end-to-end encryption by default (not just as an optional mode), has a track record of independent security audits, and is transparent about what metadata it does and doesn't collect, since encryption of message content doesn't automatically mean metadata is protected too.
The Bottom Line
Default end-to-end encryption is the baseline to look for — an app that only encrypts messages in an optional mode leaves most conversations unprotected unless you remember to turn it on every time.
If this looks similar to something else you've seen, it's worth reading Best Family Identity Theft Protection Plans.
This pattern shows up elsewhere too — see Best Identity Theft Protection Services in 2026, Compared.
Frequently Asked Questions
What’s the short answer?
Default end-to-end encryption is the baseline to look for — an app that only encrypts messages in an optional mode leaves most conversations unprotected unless you remember to turn it on every time.
What should I actually look for?
End-to-end encrypted messaging apps ensure that only you and the person you're messaging can read the content — not even the app provider can access it.