Truedialer app has been available for Windows Phone for sometime now. It comes from the same company behind Truecaller. It is a smart phone dialer that uses a simple and easy to use numeric pad to help find numbers within your phonebook, and beyond your phonebook with Truecaller integration.
Best part of this app is that it is free!!!
• Easy to use
• Access over 1 billion Contacts through our unique Truecaller integration.
• Saves numbers directly into your phonebook
• Searches quickly
• T9 search (supports predictive text)