GROUPS: You can create groups with up to 5000 members.
CHANNEL: Create a public or private channel to broadcast any messages or files with an unlimited audience.
BOTS: You can add any type of bots.
CHATS SECRETS: Create secret chats that can self-destruct in a few seconds.
STICKERS: Endless stickers available to make your conversations more fun.
Telegram for Android Licensed under GNU GPL v. 2 or later.