Privacy

The short version

Perfect36 stores what it needs to show you your own practice results and nothing else. It does not sell data, does not run advertising, and has no third-party trackers. There is no analytics pixel, no advertising network and no data broker involved.

Your uploaded PDFs are private to your account. Nobody else can read them, including other students, and they are never shown to anyone you have not shared a classroom with.

What is collected when you sign in

Signing in uses Google. Perfect36 never sees your Google password. From your Google account it stores your email address, your display name, and the account identifier Google issues.

The email address is used to identify your account and, for a teacher, to show classmates' names on a roster. The display name is shown to a teacher whose classroom you join.

What is stored as you use it

The PDFs you upload, in private storage, readable only by your account.

Your answers to each question, the time spent on each one, your scores, and which questions you have since corrected.

How long you study each day, which drives the streak and the weekly chart.

Which questions you missed, so they can come back for revision.

If you join a classroom: that membership, and the results of assignments your teacher set.

What your teacher can see

If you join a classroom, the teacher who owns it can see your name and the results of assignments they set you — the score, which questions you got wrong, and how long you took.

They cannot see practice you did on your own, tests you uploaded yourself, or your conversations with the AI tutor. Other students in the classroom cannot see your results at all.

This is enforced by the database rather than by the app's screens, so it holds even if a page has a bug in it.

Reading your PDF

The booklet you upload is read in your own browser. The answer key, the scoring table and the page ranges are extracted on your device, and a scanned booklet is recognised on your device too. The contents of the PDF are not sent anywhere to be read.

The one exception is opt-in and narrow: if a few rows are too unclear for your device to read, you can ask the AI reader to look at them. That sends a handful of small cropped images — a couple of rows each — to Anthropic. It never sends the booklet, a page, or a passage, and it only happens when you press the button.

The AI tutor

When you use the tutor, your messages and the context of the question you are asking about are sent to Anthropic, which provides the model. Anthropic processes them to generate a reply.

Conversations are not stored. They exist only in your browser while the page is open, and are gone when you leave it. Nobody, including the site owner, can read them afterwards.

Usage analytics

Some activity is recorded to understand how the app is used: that a page was visited, that a test was started or finished, that the tutor was asked something, and roughly where a visitor first arrived from.

This is deliberately thin. No message text is kept. A referring website is reduced to its bare hostname before it is stored, so no page addresses or search terms are recorded. The only person who can see any of it is the site owner, and the dashboard they see reports totals and averages rather than named individuals.

Where it is stored

Data is stored with Supabase, which hosts the database and the file storage, and the site runs on Vercel. Both are processors acting on the site owner's behalf.

Access is controlled at the database level: every row is scoped to the account that owns it, and the two exceptions — a student reading a test their teacher assigned, and a teacher reading results for their own assignments — are written as database rules rather than left to the application.

Your data, and getting rid of it

You can delete any test you uploaded from your library, which removes the PDF from storage as well as the record of it.

To delete your account and everything attached to it, email dannyduron210@gmail.com. Deleting the account removes your profile, attempts, scores, revision queue and uploaded files.

To ask what is held about you, email the same address.

Young people

Perfect36 is built for students preparing for the ACT, most of whom are teenagers. It is not intended for children under 13, and accounts should not be created for them.

If you are a parent or a teacher and believe a child under 13 has an account, email dannyduron210@gmail.com and it will be deleted.

Changes

If this policy changes in a way that affects what is collected or who can see it, the date at the top of this page will change. Continuing to use the app after that means accepting the updated policy.