Astian Contact: Administra tus - Google Play

A lightweight, fast and secure contact manager that allows you to manage your contacts, millions of them. Contacts can be stored on your device only through this contacts app and it can also be synced by different means. This contact manager will help you keep everything in one place without the hassle of backing up your contacts as the backup of contacts.

This application takes up little space and is effective when you need to backup contacts and keep a phone book.

You can also use it to manage user emails and events. It has the ability to sort / filter by multiple parameters, optionally showing the last name as the first name. In this way, you can achieve smart contact recovery in a fast way. You don't have to scroll down to find your required contact. Also, every time you add a new contact, the contacts backup automatically ensures the integrity of the contacts.

You can show your favorite people or groups in a separate list. Groups can be used to batch send emails or SMS, to save you time you can easily rename them. You don't need to keep a phone book now! Just create a smart contact group and send messages to your loved ones.

Contains handy buttons for calling or texting family members. All visible fields can be customized as you like, you can easily hide the unused ones. The search function will search for the given string in each visible person field, so you can easily find the one you want.

It supports the export / import of contacts in vCard format to .vcf files, for easy migrations or to make backup copies of your data. Backing up your contacts is crucial in maintaining your phone book. This app provides smart contact backup technology that syncs old and new contacts regularly to keep a backup of these numbers.

Like the contact source, you can also easily change your name, email, phone number, address, organization, groups, and many other customizable fields. You can also use it to store contact events, such as birthdays, anniversaries, or any other custom event.

This simple contact editor has many useful settings like showing phone numbers on the main screen, toggling the visibility of the contacts thumbnail, showing only contacts with phone numbers, showing a call confirmation dialog before starting a call. It comes with a quick marker that also uses letters.

To further enhance the user experience, you can customize what happens when a contact is clicked.

It does not contain unnecessary ads or permissions. It is fully open source, provides customizable colors.

Check out the full set of Astian tools here:
https://www.astian.org

Astian Contacts Independent Website:
https://www.astian.org/suite/contacts