Ka-Block! is a content blocker for Safari that prevents ads and tracking scripts from slowing down web pages you visit.

Many sites use third-party scripts to track your behavior across the web, causing pages to load slowly and draining your phone’s battery. Blocking these scripts dramatically improves page load time, data usage, and battery life.

- Fast, curated filter list
- Open source
- Also available for Safari on Mac

Protecting privacy and performance on the web is important. We hope you enjoy Ka-Block!

What’s New

Version 3.4

Updates to the filter list.

Ratings and Reviews

4.6 out of 5
96 Ratings

96 Ratings

David Levine ,

Works as advertised

Mobile ads and their trackers are the worst. I had been using 1Blocker for a while, but quite a few sites would be broken where I couldn’t use menus or searches. Ka-Block has changed that. It blocks most of what I hate while not breaking the way websites work. It doesn’t block everything, but that’s not what it’s designed to do. It’s designed to block what it can without breaking websites, and it does a great job at it.

DavidPabian ,

Best Block

I also use the desktop version because it’s the only ad blocker I’ve found that doesn’t require access to contacts, your richest relatives’ bank accounts and signing up for all current and future marketing scams. This iOS version does as advertised quickly and efficiently.

Marcus Ch. ,

Most effect Ad-Blocker I’ve used, Whitelisting would be a plus!

Title says it all, very simple setup and works great right away. This hasn’t broken any sites for me and I’ve had faster performance since using this. If this ad blocker would include whitelisting in the future, it would make this a complete home run!

App Privacy

The developer, David Graham & Josh Peek, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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