AdBlocker Ultimate vs uBlock Origin

AdBlocker Ultimate blocks ads and trackers in browsers, apps and across devices, with products for Windows, Android and iOS as well as browser extensions. Its Windows app adds system-level ad and tracker blocking, phishing protection and customizable exceptions. Android offers system-wide filtering, per-app controls, malware and phishing protection, custom filter rules and encrypted DNS, including DNS-over-HTTPS, DNS-over-TLS and DNSCrypt. The iOS product blocks ads, malicious domains and trackers in Safari and supports custom filters and a whitelist. Browser extensions are listed for Chrome, Firefox, Opera, Yandex and Edge; they do not use a predefined acceptable-ads list. The maker says filtering is processed locally and browsing history is not tracked. A free plan and 14-day trial are available. Listed yearly plans cost $39.99 a year for either 3 or 10 devices; lifetime licenses cost $99.99 as a one-time purchase for either device count.

uBlock Origin is a free, open-source content blocker for desktop and Android versions of Firefox, as well as Chromium and Thunderbird versions. It blocks ads, trackers, coin miners, popups, anti-blockers, and malware sites by default. Several filter lists are built in, and users can add lists and hosts files or create custom rules using EasyList syntax with uBlock Origin extensions. If blocking is too broad, users can disable preselected lists. The basic and advanced popup interfaces include a per-site point-and-click firewall. The project’s stated purpose is to help users neutralize privacy-invading methods in the browser, and it is described as CPU- and memory-efficient, fast, and lean. It works best on Firefox and also supports Chromium-based browsers, including Edge and Opera. In Thunderbird, it affects feeds but not email. The project advises against running it alongside another content blocker. It is licensed under GPL-3.0/GPLv3, and enterprise deployment documentation is available.