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Unknown Call & Contact Blocker

Unknown Call & Contact Blocker

Android Communication Growtons Tech
4.5 Popularity

Block spam calls and unknown numbers

System Requirements

Updated
October 2, 2025
Category
Age Rating
Everyone
Developer
Android
Android 5.1++
Package Name
com.growtons.call.blocker.block.spam.calls.blacklist.unknown.calls.block.robo.calls

So here's my take on Unknown Call & Contact Blocker. I've tried a bunch of call blocking apps and this one's pretty solid. The ability to filter by prefix is a game-changer and blocks a ton of spam. The interface is simple to use too. Only downside is the ads, but that's the price you pay for a free app. Overall, it's a great option if you're fed up with unwanted calls.

Manya Lyalya
AUTHOR: Manya Lyalya Editor, Grand Screen

Pros

  • Blocks spam calls based on prefix
  • Silences or rejects unknown numbers and contacts
  • Easy to set up and use
  • Completely free to download and use

Cons

  • Can be annoying ads if you don't pay
  • Takes some time to figure out all the features
  • Doesn't integrate with your phone's native call blocking
GOOGLE PLAY SCORE
4.5 /5
based on 4,915 reviews
Generally Favorable
90
MY SCORE
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Description

Been using Unknown Call & Contact Blocker for a couple months now. It’s basically an app that lets you block spam and robo calls. Pretty solid if you’re sick of all those annoying numbers blowing up your phone.

Here’s what you do: you can set rules to automatically silence or reject calls from unknown numbers or contacts you’ve blacklisted. There’s also an option to block calls based on the first few digits, which is great for filtering out those common spam prefixes. Took me a while to figure that one out but it’s really useful.

Look, if you get a ton of spam calls, you’ll probably love this app. It’s not perfect – the ads can get a little annoying if you don’t pay – but overall it does the job. Worth checking out if you want to stop wasting time on those junk calls.

User Reviews

Matthew Hermann October 16, 2025

Nice App! But I do have a suggestion. I would like to have the option when making the rules to block them from leaving voicemails, sending text messages. Additionally, I...

Christine L Easterling October 16, 2025

Yay! hallelujah 🙌🏽 fantastic app! I never knew phone peace until now! LOL! it blocks all of those annoying scammers and scam calls! it really works! my only very small...

Derek Labansat October 16, 2025

AS LONG AS IT STAYS FREE, IT'S PERFECT!!! I have been getting an ungodly amount of spam calls lately, and they have all been from the area code of my...

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