Paul Williams

April 28, 2021

1Blocker Cleverly Expands Ad Tracking In-App

A notable ad tracking blocker, 1Blocker on iOS/macOS, has performed a tremendous service to those using it over the years: building a library of trackers and maintaining it as a Content Blocker extension within Safari.

I’ve used it on and off for several years. It mostly works. The elimination of reading hostile formats like auto-playing video banners and slow-loading ads has been a boon to the overall quality of life I have on my devices.

The primary limitation it has had over the years was blocking prevalent ads in-app. That changes with their 4.0 update. They’ve cleverly designed a ”firewall” VPN system that blocks in-app ads and trackers locally on the phone. This means there’s no round-trip delay in running a normal VPN through their servers, which mitigates against speed deprecation.

MacStories has a good summary of the update, and they’ve been able to use to beta for several weeks leading up to the launch. Love to see these kinds of updates come through.