Terms of use

The plain version: Tend Block is licensed to you through the Mac App Store, Pro is a subscription you can cancel any time, and blocking is done as well as we can, without guarantees.

Last updated 4 November 2026

The licence

Tend Block is licensed to you, not sold, under Apple's Licensed Application End User License Agreement (the Standard EULA). These terms add to it; where the two differ, the Standard EULA applies. The licensor is Mohamed Elsawy.

Tend Block Pro

• Plans. Pro is an auto-renewing subscription, billed yearly or monthly. The App Store shows the price for your country before you buy.
• Free trial. The yearly plan starts with a 7-day free trial for new subscribers. If you don't cancel at least 24 hours before it ends, the first year is charged to your Apple Account.
• Renewal. Your subscription renews automatically at the end of each period, and your Apple Account is charged within 24 hours before that, unless you turn off auto-renew at least 24 hours before the period ends.
• Cancelling. Manage or cancel Pro in your App Store account settings, or from Tend Block's Pro page. Pro stays on until the end of the period you've paid for.
• Refunds. Apple handles payments and refunds. You can request one at reportaproblem.apple.com.
• Your other Macs. Pro works on every Mac signed in to the same Apple Account. If it doesn't show up, use Restore Purchases on the Pro page. Pro isn't shared through Family Sharing.

What blocking can and can't do

Tend Block uses Safari's own content blocking and rule lists we maintain. Websites change all the time, so some ads, pop-ups or distractions will get through, and a rule can occasionally hide something a page needs. Allowed sites and Pause are there for those moments, and Report an Issue tells us what to fix. Tend Block is provided as it is, without a promise that it will block any particular thing or work with every website.

Answering a cookie pop-up (Pro) picks one of the site's own options for you. It's your choice, made on your behalf; how a site honours it is up to the site.

Open-source software

Tend Block Helper includes DuckDuckGo's autoconsent, used unmodified under the Mozilla Public License 2.0. Its licence and source link are in the app, under Settings, Open-source licences.

Changes

We may update these terms, for example when Tend Block gains new features. The current version is always on this page, with its date. Using Tend Block after a change means you accept the new terms.