The most powerful and the fastest content blocker, used by over a million people on iOS and Mac. Essential app for anyone who uses Safari.

Unlike other adblock apps, we can't see what sites you visit and track you. That’s because 1Blocker is a native Safari content blocker, not a shady VPN server. We are supported entirely by our users, there’s no “acceptable ads” program.


1Blocker has been featured in The New York Times, TechCrunch, and many more.

• “I like 1Blocker enough that I’ve stopped thinking about blockers.” - John Gruber, Daring Fireball.
• “Switched from Ghostery to 1Blocker for macOS Safari, which uses the fast new content-blocking API, and it seems noticeably faster.” - Marco Arment.
• “Does exactly what you want it to do, and the customer support is fantastic. Highly recommended ad blocker.”


- Block annoying ads (adblock) -
Ads have become a total disaster on websites by ruining the browsing experience. No one likes to see ads that pop over the entire screen.

- Save battery, data and time -
Independent tests by Wirecutter, NY Times, and BrooksReview confirm that 1Blocker cuts data loaded by sites on average by over 50%.

- Protect yourself online -
Many corporations track your behavior and what sites you visit. Online ads are not safe and may serve you malware even on major sites like Forbes and Yahoo.

- Improve your productivity -
Besides ads, webpages often contain distracting elements (like “You Might Also Like” and subscription boxes) that disturb your work flow and productivity.


1Blocker comes with almost 50 000 built-in blocker rules. It is very configurable.

• Block ads, trackers and other annoyances. Make browsing over 2x faster.
• Tap to hide any annoying content with our visual editor.
• Support sites you love by whitelisting them.
• Create your own custom blocker rules (hide elements, block sites and cookies).
• All your settings are synced over iCloud.

1Blocker is also available for iOS in the App Store.


We believe 1Blocker is better than anything else available. Here is why:

• We don’t make deals with advertisers.
• We don’t and technically can’t track our users.
• We have no customer data to sell.
• We are bootstrapped and self-funded. No investors. Made by a tiny two-person team.


While most other adblock apps block content by filtering elements of an already downloaded page, 1Blocker uses native Safari content blocker technology (API) to tell Safari in advance what should be blocked. This vastly improves efficiency, doesn’t slow down Safari, and saves battery life.


Send your feedback at @1BlockerApp on Twitter or email

Our mission is to give you all the tools to make Safari browsing fast, safe and productive for you.

Happy Safari browsing, friend! You are going to like surfing the web again.

What’s New

Version 1.4.6

This version fixes the iCloud sync problem and contains an updated blocker list with fixes and improvements for issues on some websites you've reported. Make sure to manually launch the app after updating to the latest version to have new rules applied in Safari.
If something’s not working right, you have an idea you’d like to share, or you just want to say hello, contact us anytime on Twitter at @1BlockerApp.

If you enjoy using 1Blocker, please leave a nice review here on the App Store. We read everything and it means a world to us. Thank you!

Ratings and Reviews

2.8 out of 5
117 Ratings
117 Ratings
Timothy R. Butler ,

Buggy Cloud Sync, Poor Control

I’ve been looking for something better than Ghostery to allow me to block trackers and the most heinous of ads without blocking “acceptable ads.” Having run an indie site before, I’m not interested in completely depriving publishers of revenue, I just don’t want my computer mining cryptocurrency behind the scenes or loading ads that try to circuvent privacy protections in the browser. It appeared 1Blocker could do this on iOS, so I went ahead and bought the Mac version. I soon discovered the only way I could enable most normal, unobtrusive ads was to go through tens of thousands of poorly labeled rules and turn them on and off one at a time. Synchronizing this with the premium iOS version promised to help, since the iOS version lets me do bulk enabling or disabling of rules, but the sync is broken and whatever I set on that side gets reset and never synced to the Mac. So, I’ve bought 1Blocker for both macOS and iOS and can’t use either. The developer isn’t very responsive, but did suggest I ask Apple for a refund after several months of me trying to reach out. Apple didn’t issue the said refund, unfortunately.

voodoohoodoo ,

Good But Complicated

Does a decent job of blocking ads. Adguard Safari extension much easier to set up and configure. Blocking page elements using 1Blocker Safari extension will scroll you to the top of the page automatically without letting you scroll down. If the ad you want to block is past that, you're out of luck. The expand-shrink selection interface is difficult to see what it's selecting, often resulting in bad selections. To undo unintended selections meant going to the 1Blocker Desktop app and digging through the interface to find the one you want to delete, if you can find it. While it can be cumbersome to configure, it's fast and solid but not as good as the iOS version.

meatmystery ,

Inconsistent rule / package toggle switch behavior

Toggle switch behavior between packages and their included rules is very inconsistent and buggy, to the point that it's very difficult to tell what is enabled and what isn't. Most disappointing is that disabling a package does not cause all the included rules to also become disabled as a result (and vice versa when enabling a package).

Also, for some reason, the "Block Ads" default package (of nearly 40,000 rules) always shows 1 rule as disabled, even though that rule does not appear in the Disabled view filter, and as noted previously, attempting to perform a disable / enable cycle of the entire package does nothing to help with this issue.

Please integrate the two parts of the UI so that it actually makes sense!


Salavat Khanov
10.4 MB

OS X 10.11 or later, 64-bit processor



Age Rating
Rated 4+
© Salavat Khanov


  • Family Sharing

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

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