scala_zh.html Telegram Group and Channel Link (Jan 2021)

Telegram provides unlimited storage. Means all your text messages, images media files & documents will be saved on their cloud. You can log out and log in any number of times from any number of devices simultaneously without losing any data, you don’t need to worry about backup & restore. You can view the active sessions and see on which devices are you logged in now. Thereby you can download any file any time anywhere.

Telegram’s core functionality is the same as most other messaging apps: You can message other Telegram users, create group conversations, call contacts, and send files and stickers. Telegram channel is somewhat similar to groups, which can accommodate an unlimited number of members. The creator of the channel can decide who can post and other members can view the posts.

Telegram only uses this encryption in calls and in its “secret chats” feature (which I talk more about below), not in regular chats — those are only encrypted client to server. Meanwhile, WhatsApp, the supposedly less secure service, has used end-to-end encryption in messages, calls, and video calls. Both services also have optional two-factor authentication.