Frequently Asked Questions

Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed. It delivers messages faster than any other application, is free and secure.

Yes, Telegram is 100% free and will always be free. We are not going to sell ads or introduce subscription fees.

Telegram keeps your messages safe from hacker attacks. We use a combination of 256-bit symmetric AES encryption, 2048-bit RSA encryption, and Diffie–Hellman secure key exchange. For additional security, you can use Secret Chats with end-to-end encryption.

Yes! You can use Telegram on all your devices at the same time — your messages sync seamlessly across any number of your phones, tablets or computers.

To create a group, tap the new message icon and select "New Group". You can add up to 200,000 members to groups. For even larger communities, you can create a Channel or Supergroup.

Secret Chats use end-to-end encryption, leave no trace on our servers, support self-destructing messages, and don't allow forwarding. Secret Chats are device-specific and messages can only be accessed on the originating device.

Yes! You can delete any message for both sides in any one-on-one conversation, anytime and without any time limit. When you delete messages, you can choose to delete them for yourself or for everyone in the conversation.

You can send any file type on Telegram, up to 2 GB per file. Photos can be sent in their original quality without compression. You can send videos, documents, audio files, and more.

To create a bot, talk to @BotFather on Telegram. He will guide you through the process and provide you with an authentication token for your bot. You can then use the Telegram Bot API to build your bot.

Yes! Telegram's API and protocol are open, and we welcome security experts to audit our system. The code for our Android, iOS, web, and desktop apps is available on GitHub.