From the minimalist Store entry for Unigram Preview (the latter word indicates that the developers know full well that all the functionality isn't quite baked in yet!):
Unigram – An Universal take on Telegram. Made by the community, for the community
Happily, MSPU has put together a full(ish) feature list:
- Basic chat functionality
- Use of emoticons
- Stickers
- Group chats
- Show profile pictures
- Share pictures
- Search through notes
- Mute chats
- See if the message has been sent
- See if the message has been checked
- Start new chats
- See if an user has been online
- Set a profile picture
- Use your phone number
- Show notifications
- And more…
UWP-specific:
- Quick reply from notifications
- Support for Continuum
- Adaptive design
- Share contracts
- Integrate with the People Hub
A couple of promo screens of Unigram Preview in action:
This seems well done and can work right across form factors, plus there's Telegram's own cross-platform support. I have to confess that I've never used Telegram in my life though, so comments welcome if you've given Unigram a go!
You can grab this for free here in the Store.