Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Drupe - Next generation contact manager and dialer.
SpotiMy - Play/Pause and Next/Previous functions for Spotify directly on your Menu Bar!
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Kontakt - With KONTAKT 6, you can sound like a snare drum, a symphony orchestra, or anything in between, from a universe of sampled instruments.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.