Telegram is A freeware, cross-platform, cloud-based instant messaging service with end-to-end encrypted video calling.
Stay connected with customers using Telegram's encrypted, cross-platform messaging. Enjoy privacy and open API with unlimited message sizes.
Telegram is a cross platform, cloud-based messaging platform allowing users to access their chats across multiple devices, while maintaining privacy by ensuring heavy encryption. The platform has an open API with a free source code. It does not place any limits on the size of individual messages/visual content, hence is preferred by large groups.