How is Telegram different from WhatsApp?

What is Difference between Telegram and WhatsApp? 

Unlike WhatsApp, Telegram is a cloud-based messenger with seamless sync. As a result, you can access your messages from several devices at once, including tablets and computers, and share an unlimited number of photos, videos and files (doc, zip, mp3, etc.) of up to 2 GB each.

Telegram needs less than 100 MB on your device – you can keep all your media in the cloud without deleting things – simply clear your cache to free up space.

Thanks to Telegram's multi-data center infrastructure and encryption, it is faster and way more secure. On top of that, private messaging on Telegram is free and will stay free — no ads, no subscription fees, forever.

Telegram's API and code is open, and developers are welcome to create their own Telegram apps. We also have a Bot API, a platform for developers that allows anyone to easily build specialized tools for Telegram, integrate any services, and even accept payments from users around the world.