Last updated 2026-06-19

Privacy

Short version: The Screen Mercy app makes no outbound network requests for its core features. Your location stays on your Mac. The app runs no analytics and contains no tracking. This marketing website (the one you're reading now) uses standard, privacy-respecting web analytics — described under Website analytics below. We never sell your data to anyone.

What the app collects

Nothing, by default. The app asks macOS for your location only if you enable auto-detect, and that value never leaves your machine. It's used as math input for the solar position algorithm.

Website analytics

This website uses two analytics tools so we can understand which pages are useful and how many people start a download or a purchase:

• Vercel Web Analytics — cookieless, aggregate page-view and Web-Vitals data. No personal profiles.
• PostHog — page views and a small set of events (a download starting, a checkout starting or completing) so we can measure the conversion funnel. We don't create a profile for anonymous visitors; an identifier is only associated if you sign in to your account.

We honor your browser's Do‑Not‑Track signal — with it on, analytics is suppressed. Privacy-blocking browsers and extensions will also block these tools, and the site works exactly the same. We do not use this data to track you across other websites, and we never sell it. None of this applies to the app itself, which remains analytics-free. Want your website data removed? Email support@screenmercy.com.

Auto-updates

When auto-updates are enabled, the app uses Sparkle to fetch a signed update manifest (appcast) from our server. That request carries only the standard information any HTTP request carries (IP, user-agent, app version). No account ID, no device fingerprint.

Payments

Pro purchases are processed by Stripe. We do not see your full card details. Stripe provides us the billing email so we can email your license key.

License activation

Unlocking Pro takes exactly one network request, made only when you paste your license and confirm. It registers that Mac to your license so we can enforce a per-license device limit, and returns a device-bound unlock. That request sends your license key, a one-way hash of your Mac's hardware id (the raw id never leaves your device), and a device name you'll recognize in your account. After that one request, the app does not contact us again to check your license: no periodic re-validation, no expiry, no remote kill switch. If you're later refunded, we rely on the honor system to remove the license (see our refund policy); we never push a remote-disable update.

Support email

If you write to support@screenmercy.com, we keep the thread long enough to help you, then archive it.

Changes to this policy

If we ever change anything that matters, we'll ship a release note that says exactly what changed. The brief version of this policy is the one that governs.