Cookie Policy

Short version: Game Set Log doesn't use cookies. It uses your browser's local storage to save your data on your own device, which is what makes the app work at all — including fully offline. Nothing here is used for tracking, advertising, or analytics.

What are cookies?

Cookies are small files a website can ask your browser to store, usually to remember who you are across visits or to track behavior for analytics and advertising. "Local storage" is a similar browser feature, but it's not automatically sent to a server on every request the way cookies are — it just sits in your browser until the app (or you) clears it.

Cookies we use

None. Neither the offline version nor the web version (PWA) sets any cookies.

Local storage we use

These are strictly necessary — the app can't function without them, since they are the app's core feature (saving your data on your device instead of on a server):

Name	Used in	Purpose
tennisTrackerState_v1	Both versions	Stores your matches, stats, and settings, so they're there when you come back.
tennisTrackerLicense_v1	Web version (PWA) only	Remembers that your license key was verified, so you're not asked again.
tennisTrackerTheme_v1	Both versions	Remembers your dark mode and accent color preference.
tennisTrackerZoom_v1	Web version (PWA) only	Remembers your text zoom setting.

Because these are strictly necessary for the service you're using (not for tracking, marketing, or analytics), we don't need to ask your permission for them — only tell you about them, which this page does. You can clear them any time via your browser's settings, or with Clear all data inside Game Set Log's Settings (clearing data never affects your license — those are stored separately).

Offline caching (protected/PWA version only)

The web version (PWA) uses a service worker to cache the app itself (its code, icons, and manifest) so it can be installed to your home screen and opened without a connection. This is a browser caching mechanism, not a cookie, and it's never used to store or track your match data. Your license check is deliberately excluded from this cache — it always goes to the network live.

Third-party resources

Loading either version of the app doesn't fetch anything from third-party trackers. The only outside connections are:

• Gumroad or Payhip, only when you purchase — their checkout pages set their own cookies under their own policies once you're there.
• Our own server, only in the web version (PWA), only once, to check your license key.

How to control this

You're always in control:

• Use Export/Share inside Game Set Log to back up your data before clearing anything.
• Use Clear all data inside Settings, or your browser's own "Clear site data" setting, to remove everything Game Set Log has stored.
• Most browsers let you block local storage entirely for specific sites — note that Game Set Log won't be able to save your matches if you do this, since that's the mechanism it relies on.

See also the studio-wide Privacy Policy for how data is handled more broadly across Thin Line Studio, or Game Set Log's own Privacy Policy for details specific to this app.

Changes to this policy

If this policy changes, we'll update the date at the top of this page.

Contact

Questions about cookies or local storage: thinlinestudioshop@gmail.com.