FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
F-Stop Media Gallery - Image and video organizer.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
A Photo Manager - Manage local photos on Android: gallery, geotag with photomap, tags, find, sort, view, copy...
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.
LeafPic - LeafPic is a fluid, material-designed alternative gallery.