Evercontact - Your contacts always up to date and automatically with Evercontact.
puRRing - Cute cat videos with every incoming call on your Android
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
Cardbox - Contacts reimagined as a social network ✨
CRM-gx - Contact Management
iRingg - iPhone ringtone studio + iTunes alternative (2 in 1)