You can use Telegram on smartphones, tablets, and even computers. We have apps for iOS (6 and above), Android (4.1 and up) and Windows Phone. You can also use Telegram's web version or install one of our desktop apps for Windows, OSX, and Linux.
You can log in to Telegram from as many of your devices as you like — all at the same time. Just use your main mobile phone number to log in everywhere.
Our API is open for developers, should you want to build your own applications for other platforms.