Apple App Analytics - Apple's very own iTunes Connect App Analytics
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
My Motiff - Allowing you to stay connected in realtime
Evercontact - Your contacts always up to date and automatically with Evercontact.
Usage Analytics in appFigures - Track usage for your app along side downloads, ranks & more
Pobuca Connect - Connect with your contacts.