You always know
who's calling

A convenient Caller ID for Android and iPhone. Detailed phone number information, ratings, reviews, tags, and more.

Google Play

4.7

230k reviews

App Store

4.2

AppGallery

4.6

Download APK

Maximum features

Scan to open on your device

Android

An incredible calling experience with NumBuster

Android users can enjoy all NumBuster features right on the call screen

Maximum info during calls

Check via call log

Anti-spam SMS client

iPhone

Caller ID and anti-spam for iPhone

We’ve made our Caller ID for iPhone as convenient and informative as possible. Give it a try!

Info label on the call screen

Quick check via call log

Easy phone number blocking

Download on the App Store

B2B Caller ID

Business Solutions

NumBuster offers business solutions for call and SMS security

Widget and call screen SDK for Android

SDK detector for iPhone

Push notifications about potential fraud

Integration via API

News and Articles

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💬 Tips

How to Install the NumBuster Web App on iPhone

Jun. 25 2025

🧩 Functions

How do I prevent a user from leaving comments on my phone number card?

Jun. 19 2025

🧨 Danger

SMS from a bank, tax office, or about a fine? It may not be what it seems

Jun. 11 2025

NumBuster Reviews

All reviews All

Felix J.

App Store

NumBuster is the go-to database for anyone who wants to check unknown numbers. It’ll dig up info even on scammers — never doubt it!

Chloe N.

GooglePlay

Been using this feature for a month now — totally satisfied. I can see who’s calling. This app has saved me so much stress and money!

Miles K.

AppGallery

I’ve been using it for about a month and I’m happy so far. You can instantly see who’s calling, their name, rating, and where they’re from — region or country.

Rachel K.

GooglePlay

Blocks unknown calls and lets you check any number. If everyone had this app, scammers wouldn’t be able to get away with their tricks.

You always knowwho's calling