Number Book

Number Book is a social messaging app that connects you with your contacts using their phone numbers. Look up anyone in your address book and instantly see their profile information when they call or message you—no need to manually search or add details yourself.

Chat with friends using a familiar interface that supports text, emoji, images, audio, video, and location sharing. The app works like popular messaging platforms, letting you stay connected with people who have Number Book installed. Build your network by linking your profile to discover friends across social networks, expanding your reach beyond your existing contacts.

Manage your communications with ease. Block unwanted incoming calls, dial friends directly without typing numbers, and share contact information across other apps. Send text messages alongside instant messaging, giving you flexibility in how you reach out. Whether you're catching up with close friends or organizing group conversations, the app provides all the tools you need in one place.

Number Book is designed for Android 6.0 and higher, offering a straightforward way to keep your contact information organized and accessible. Start using your phone number as your identity and let your network grow naturally.