How it actually works
Plain explanations about privacy, encryption and access to communication. No marketing and no scare stories: we describe how things really work, including the places where Chattr is weaker than other apps.
How to choose a private messenger: 7 questions worth asking
The word “private” in an app description guarantees nothing, because everyone writes it. Here are seven questions whose answers genuinely separate one app from another.
Read the article →Your messenger got blocked: what actually helps, and what does not
A block rarely looks like an honest “service unavailable”. Far more often it is an endless connecting spinner and photos that never send. Here is what is really going on.
Read the article →Metadata: what a messenger knows about you without reading a word
Even when message content is sealed properly, a layer of data remains around it: who, to whom, when, how often. It reconstructs more than you would expect.
Read the article →End-to-end encryption: what it protects, and what it does not
End-to-end encryption has become a marketing checkbox, and the meaning has worn away with the repetition. Here is what it covers, without the cryptography.
Read the article →Chattr next to other messengers
Line-by-line comparisons with Signal, Telegram and WhatsApp: encryption, sign-up, behaviour on filtered networks. Honest about where Chattr wins and where you should pick something else.
Open the comparisons →Written by the Chattr team. We describe other apps from their public documentation and try hard to be accurate. If you spot a mistake, email us and we will correct it.