This is a messenger app based on the MTProto protocol. Telegram is a messaging app with a focus on speed. It’s fast, simple and free. With Telegram, you can create group chats with up to 200 people so you can stay connected with everyone at once. Plus, you can share videos up to 1GB, send multiple photos from the web, and forward any media you receive in an instant. All your messages are in the cloud, so you can easily access them from any of your devices.