Unigram is a Universal client for Telegram for Windows 10 and Windows 10 Mobile. The app is not associated with Telegram. The Unigram app is created by fans of Telegram App who are awaiting a new UWP Telegram App for Windows 10 and Windows 10 Mobile.
The app is currently available for download in Windows Store which already has some Universal Features based on Windows 10. Apart from providing the basic chat functionality, use of emoticons, Stickers the app also has features like Stickers, Group Chats etc.
You will be able to also Share Pictures, Start and Mute Chats along with be able to see if the particular message has been sent and checked by the opposite person. The team is however working on adding some more new features to the application.
The app also provides support to some of the Universal App features like Quick reply from Notifications, Continuum Support, People Hub Integration and more. The team is currently working on bringing Background Functionality support, Sending Stickers and should be available to the application sooner than later.
If you are interested you can download the app from the below link of Windows Store.