Privacy & Accessibility
Grade Sheet is a private gradebook a teacher keeps on her own computer — rosters, marks, averages and printouts. It is free, carries no ads, and is made by Sky Wolf Studios.
Where your data goes
Nowhere. Your class names and periods, every student name (or initials, or ID) you paste or type, every assignment and its points, every mark, missing/excused flag, absence flag and note you record, and your grading settings is kept in this browser's own IndexedDB database `sws-gradesheet` — an object store `classes` holding one record per class with that class's whole roster, assignments and marks; `meta` holding a single `book` record with your settings and a class index; and `files` for a backup file handle. The only localStorage key it writes is `sws.gradesheet.seen`, which holds a date and is used to notice that this browser has erased your data.
There is no upload, no server-side processing, no account, and no copy held anywhere we can reach. We could not hand your data to anyone if we were asked for it, because we do not have it.
How to check that for yourself
Turn off Wi-Fi, reload the page and keep marking — entry, averages, printing and export all still work, because the whole app is cached on your device by its service worker. An app that runs with the network off is an app that cannot be sending your students' grades anywhere. To look directly, open DevTools → Application → IndexedDB → sws-gradesheet and read every record the app holds; or press Ctrl+U and search the source for the word fetch. There is not one.
What we do not do
- No account, no sign-in, no email address collected.
- No ads, no analytics, no advertising trackers, no cookies, no fingerprinting.
- No selling, sharing or brokering of anything you type here. There is no data to sell.
- No paywall, no trial, no subscription, no watermark, no export limit.
Permissions
The app asks for No camera, microphone or location. Saving a backup uses an ordinary browser download., and only at the moment you use the feature that needs it. Your browser asks you, not us, and you can refuse — the rest of the app keeps working.
Who else is involved
- Firebase Hosting (Google) serves the app's static files and keeps ordinary short-lived web-server logs such as IP addresses. It cannot record anything you enter, because nothing you enter is ever sent to it.
Tips
The tip jar links out to a checkout page hosted by the payment provider on their own site. We never see or store card details. Tipping changes nothing in the app — every feature is free either way.
Hosting
The app's files are served by Google's Firebase Hosting, which — like any web host — keeps standard, short-lived server logs such as IP addresses, for security and operations. That log records that a browser fetched a page. It cannot record anything you type, because what you type is never sent to the host.
Children
This app is made for adults. It is not directed at children, and it collects no personal information from anyone, of any age.
Accessibility
We aim for WCAG 2.1 AA: labelled fields, keyboard-operable controls that keep their focus when the page redraws, visible focus rings, 44px touch targets that grow with the text-size setting, screen-reader announcements for changes, and colour contrast checked by build-time solver in both light and dark mode. The display panel in the header sets text size, spacing, contrast, reading style and motion, and those settings follow you across all of our apps.
If anything gets in your way, email us and we will fix it: stephenfurpahs@gmail.com.
Changes
If this policy ever changes in a way that affects what happens to your data, the change will appear here and the date below will move.