The release for Windows 10 Mobile currently sits on version 5.9. Here's a quick run down of the features sported by Truecaller:
  • Caller ID: Know who's calling you even if you don't have their number in your phonebook
  • Live Spam Detection: Identify unwanted calls and top spam numbers
  • Search: Search for any number whether it's local or across the world to see who it belongs to
  • Request numbers through name search
  • Yelp! integration for faster business lookup results
For those on Windows Phone 8.1, the app also got updated to version, though no changelog is presently available. We'll assume bug fixes and minor improvements.

Download Truecaller for Windows Phone 8.1