[steffex]

telegram.org does device-to-device encryption without cloud storage

[promiscuousmode]

appears to be cloud based, from the description?

[steffex]

do some more reading on this url: https://telegram.org/faq#secret-chats

[promiscuousmode]

thanks. (for future ref: link mentions selecting a secret chat avoids messages being stored on telegram servers and enables end-to-end encryption between devices)