1Blocker vs Ka-Block!

1Blocker8.5Visit KBKa-Block!7.6Visit

Higher score 1Blocker #2 in Safari Extensions 8.5/10 Free plan · 14-day trial Free planFree trial✓ 0 of 4 features Visit 1Blocker

vs

KB Ka-Block! #4 in Safari Extensions 7.6/10 Free plan Free plan✓ 1 of 4 features Visit Ka-Block!

• 1Blocker fits best

  Safari users wanting customizable blocking on Apple devices

• Ka-Block! fits best

  Privacy-minded users who prefer a free open-source blocker

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Side by side

Feature	1Blocker 8.5/10 Visit ↗	KBKa-Block! 7.6/10 Visit ↗
At a glance
Editor score	8.5	7.6
Ranking	#2 in Safari Extensions	#4 in Safari Extensions
Best for	Safari users wanting customizable blocking on Apple devices	Privacy-minded users who prefer a free open-source blocker
Pricing model	Free plan + paid	Free
Starting price	$14.99/yr	Free
Free plan	✓	✓
Free trial	14 days	—
Deployment	Desktop, Mobile, Browser extension	Desktop, Mobile, Browser extension, Self-hosted
Platforms	macOS, iOS	macOS, iOS
Built for	Solo, Small business	Solo, Small business
Features 1Blocker 0/4 · Ka-Block! 1/4
Content blocking	Not checked yet	Not checked yet
Sync available	Not checked yet	Not checked yet
App Store listing	Not checked yet	Not checked yet
Open source	Not checked yet	✓ (best)
Specs
Supported devices	Not checked yet	Not checked yet
Our review
Pros	Blocks ads, trackers and cookie notices in Safari Supports custom rules, third-party filters and element hiding Covers macOS and iOS, including in-app tracker blocking on iOS	Blocks advertising domains and tracking scripts Makes zero network connections Open-source implementation for iOS and macOS
Cons	Blocking filters are limited to Safari, not Chrome or Firefox The free version supports one top-level filter at a time Premium is required for multiple categories and background filter updates	No custom filter lists Filter updates arrive with new extension versions Supports Safari only
Our verdict	1Blocker is a content-blocking app for Safari on Apple devices, aimed at people who want to reduce ads, tracking, cookie notices and other page annoyances. It runs on macOS and iOS and supports Safari, rather than offering filters for… Read the review →	Ka-Block! is a free, open-source Safari content blocker for iPhone, iPad, and Mac. It is aimed at solo users and small teams that want a straightforward way to block advertising domains and tracking scripts in Safari. The Free plan… Read the review →

Strengths and trade-offs

• 1Blocker — where it wins

  • Blocks ads, trackers and cookie notices in Safari
  • Supports custom rules, third-party filters and element hiding
  • Covers macOS and iOS, including in-app tracker blocking on iOS

  Where it doesn't

  • Blocking filters are limited to Safari, not Chrome or Firefox
  • The free version supports one top-level filter at a time
  • Premium is required for multiple categories and background filter updates

• Ka-Block! — where it wins

  • Blocks advertising domains and tracking scripts
  • Makes zero network connections
  • Open-source implementation for iOS and macOS

  Where it doesn't

  • No custom filter lists
  • Filter updates arrive with new extension versions
  • Supports Safari only

• 1Blocker8.5/10 · Free plan · 14-day trial

  Blocks ads, trackers and cookie notices in Safari, with custom rules and filter imports.

  Visit 1BlockerFull verdict →
• KBKa-Block!7.6/10 · Free plan

  A free, open-source Safari blocker with no network connections and curated filters.

  Visit Ka-Block!Full verdict →