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Krypton Ø, Telegram, KakaoTalk and Signal: what’s encrypted by default?

Telegram and KakaoTalk end-to-end encrypt only optional secret chats. Signal encrypts chats and calls by default. Krypton Ø (Krypton zero) encrypts posts, profiles, chats and calls by default and needs no phone number. A side-by-side look.

People often ask how Krypton Ø (Krypton zero) compares with the apps they already use. The short answer: the difference is in what’s encrypted without you doing anything, what you need to sign up, and who can join.

Side by side

TelegramKakaoTalkSignalKrypton Ø
Ordinary chats end-to-end encrypted by defaultNoNoYesYes
Phone number needed to sign upYesYesYesNo
Who can joinAnyoneAnyoneAnyoneOnly through a member who knows you

Telegram and KakaoTalk

Both end-to-end encrypt only optional secret chats that you open separately. Ordinary chats aren’t end-to-end encrypted. On Telegram, secret chats work only one-to-one.

Signal

Signal end-to-end encrypts chats and calls by default, and it’s a strong choice for private messaging. Like the other two, it needs a phone number to sign up.

Krypton Ø

Krypton Ø needs no phone number or email. It end-to-end encrypts posts, replies, photos, profiles, chats and calls by default, so there’s nothing to switch on. It’s also more than a messenger: it’s a closed network with posts and profiles, where you join only through someone who knows you, and the server doesn’t know who your Fam are.

Which one should you use?

If you want encrypted messaging with anyone at all, Signal does that well. If you want a private place for the people you actually know, with posts, chats and calls that only they can open and no phone number attached, that’s what Krypton Ø is built for.

How the encryption works is explained in How can a social network work if its server can’t read your posts?.