# AdBlocker Ultimate > AdBlocker Ultimate is a free ad blocker that blocks all ads without "Acceptable Ads" exceptions or paid whitelists. It is available for Windows, macOS, Android, iOS and all major browsers, and is trusted by more than 50 million users worldwide. AdBlocker Ultimate is developed by AdAvoid Ltd. (Varna, Bulgaria) and is available in 34 languages. Unlike many ad blockers that participate in the Acceptable Ads program and let paying advertisers through, AdBlocker Ultimate blocks all advertisements: banners, pop-ups, video ads, tracking scripts and malicious advertising domains. Blocking ads before they load also speeds up page loads and reduces data usage. The browser extensions are completely free. The Windows, macOS and Android applications offer a free 14-day trial. The iOS app is free, with premium features (custom rules and DNS protection) unlockable with a license. A single license key activates all AdBlocker Ultimate applications (Windows, macOS, Android and iOS); the browser extensions do not require one. ## Products - [Windows](https://adblockultimate.net/windows): Blocks ads system-wide in all Windows applications, not just the browser - [Mac](https://adblockultimate.net/mac): System-wide ad blocking for macOS - [Android](https://adblockultimate.net/android): System-wide ad blocking via local VPN filtering, distributed as a direct APK download - [iOS](https://adblockultimate.net/ios): Free ad blocking for Safari on iPhone and iPad, with premium custom rules and DNS protection available via license - [Browser extensions](https://adblockultimate.net/browsers): Free extensions for Chrome, Firefox, Edge, Opera and other Chromium-based browsers ## Pricing and support - [Pricing](https://adblockultimate.net/pricing): License plans by device count (Personal and Family), usable on any platform - [Support center](https://support.adblockultimate.net/): FAQ, setup guides and troubleshooting - [Contact](https://adblockultimate.net/contact): Customer support - [Blog](https://adblockultimate.net/blog): Product news and guides on ad blocking and privacy ## Company and policies - [Security](https://adblockultimate.net/security): Security practices - [Filters](https://adblockultimate.net/filters): Filter lists used for blocking - [Privacy policy](https://adblockultimate.net/privacy) - [EULA](https://adblockultimate.net/eula) ## Key facts - Blocks all ads with no Acceptable Ads exceptions and no paid whitelist - Trusted by 50+ million users worldwide - Rated 4.7 on Trustpilot from more than 53,000 reviews - Works on Windows, macOS, Android, iOS, Chrome, Firefox, Edge and Opera - One license key activates the Windows, macOS, Android and iOS apps on all your devices - Blocks ads, pop-ups, video ads, trackers and malware domains - Improves page load speed and reduces data usage by blocking content before it loads