A free program for Android, by y.gphonebook.

gContacts is an app, developed by y.gphonebook, that aims to serve as a phone book for your device – with a stack of additional functions that aims to accentuate on clarity, simplicity, and ease of use

Yes, you already have a built-in phonebook in your device.

gContacts, however, will provide a shortcut button for your immediate contacts, a function dialer, an extensive search, an outbound and inbound call dialer, a function group – which, in itself, features the ability to create and launch this group, a group shelf registration, a sortation tool that permits organization, a search function that permits you to access contacts by name, nickname number, email, and/or company name, a registration function – which contains a display function read or QR code, a contact management system (integrated with Bizcaroid (card reader)), and import and export faculties for backup.

Other features include bulk mail capacities (TO, CC, BCC), outgoing prefix, a mailing list feature, and a free layout.