Privacy Policy

1. Who this policy is for

ACami accounts belong to adults. A parent or guardian creates the account; children practice under it. That means everything described here — the account, the practice history, the analytics we show — sits under the adult's account and is controlled by that adult. Section 8 covers children's data specifically.

2. Account information

You sign up with an email address and a password. Authentication is handled by Supabase, our database and auth provider, which stores your email address and a hashed version of your password. We never see or store your password itself. There is no sign-in through Google, Facebook, or any other social account, so nothing about you flows to those companies.

3. Practice data

This is the part worth reading carefully, because we do keep a fair amount of it. ACami adapts to the student, and adapting requires a record of how they have done. For each account we store:

• Practice sessions — which section was practiced, when it started and finished, how many questions were asked, how many were right, how long the session took, and the points earned.
• Individual answers — for every question: which option was chosen, whether it was correct, how many milliseconds it took, and the difficulty of the question at the time. We also store the explanation shown for a missed question, so the results page can show it again later without regenerating the item.
• Per-question review state — how many times a question has come back, how well it went, and when it is due again. This is what drives spaced repetition.
• Skill ratings — one difficulty rating per skill area, updated after every answer. This is how the system decides whether the next question should be harder or easier.

We use this to run the product: to pick the next question, to schedule reviews, and to draw the progress charts on the dashboard. We do not use it to build a profile of your child for any other purpose, and we do not share it with schools, districts, or test publishers.

4. The SEE entry calculator

If you use the entry calculator while signed in, we save one row of the numbers you typed in: the four report-card grades, the neighborhood tier you selected, the schools you picked, and which year's cutoffs you were comparing against. That is the whole row. We save it so the calculator still has your inputs when you come back.

We do not ask for and do not store your home address, and we do not convert an address into a tier — you choose the tier yourself. The estimated score is not stored either; it is recalculated each time you look at it, against the current published cutoffs.

If you use the calculator without an account, your inputs stay in your own browser's local storage and are never sent to us. Clearing your browser data removes them.

5. Cookies

ACami sets cookies, but only the ones it needs to work. The only cookies we set are the session cookies from Supabase, our authentication provider. They are what keep you logged in as you move between pages — without them, every click would log you out.

These are strictly necessary cookies. We do not set advertising cookies, analytics cookies, or any cookie that follows you to other websites. Because there is nothing optional to consent to, the notice at the bottom of the page is exactly that — a notice. There is nothing to accept or reject, nothing is switched off until you dismiss it, and dismissing it only stops us showing it to you again. If you clear these cookies or block them, you will simply be signed out.

6. What we do not do

There are no third-party tracking scripts on this site.

No Google Analytics. No advertising pixels. No session recording or replay tools. No cross-site tracking, and no third party watching what you do here. We do not sell your personal information, and we do not share it with anyone for advertising or marketing.

Where the dashboard says "analytics", it means charts about your child's own practice, computed from the data in section 3 and shown only to you. It is not a tracking product.

7. Service providers

We use a small number of companies to run the service, and they process data on our behalf rather than for their own purposes:

• Supabase — hosts our database and handles sign-in. Your account and all the practice data in section 3 live there.
• Vercel — hosts and serves the site. Like any web host, it processes the requests your browser makes, which includes an IP address, and keeps operational logs of them.
• Stripe — takes payment for a pass. Section 9 covers what reaches them and what does not.

8. Children's data

Children do not have their own ACami accounts. A child practices under the account of the adult who created it, and the practice data described in section 3 belongs to that account. The account-owning adult can see all of it, export it, and ask us to delete it.

We do not ask for a child's name, date of birth, school, photograph, or contact details, and none of those has a place to be stored. Please do not put a child's personal details into feedback or bug reports either.

9. Payments

Payments are handled by Stripe. When you buy a pass we send you to Stripe's own checkout page to pay, so your card number, expiry and security code are entered on Stripe's site and never reach our servers or our database — there is no card field anywhere on ACami.

We give Stripe your email address and an internal reference to your account, so the payment can be matched back to the right pass. Stripe tells us in return which pass was bought, how much was paid, and its own identifiers for the payment; we store those to grant your access and to keep a record of the purchase. Stripe handles your card details under its own privacy policy, as the party actually processing the payment.

10. How long we keep things

We keep your account and its practice history for as long as your account exists, because that history is what the adaptive difficulty and the progress charts are built from — deleting it resets the student to square one.

If you close your account, or if we shut the service down, we keep the practice history available for export for at least 30 days from that date, and may delete it permanently afterward. That is the same commitment section 12 of the Terms of Use makes. Export anything you want to keep as soon as you know you need it.

You can also ask us to delete your data sooner. Email legal@acami.com from the address on the account and we will do it.

11. Security

Traffic to the site is encrypted in transit. Passwords are stored hashed by our auth provider, not in plain text, and access to a row of practice data is restricted to the account it belongs to. No system is perfectly secure, but we do not keep data we do not need, which is the most reliable protection there is.

Keep your own password private — anyone who has it can see your child's practice history. Tell us at legal@acami.com if you think someone else has got into your account.

12. Your choices

You can see your practice data any time on the dashboard, change or clear your calculator inputs on the calculator page, and close your account whenever you like. For a copy of your data, a correction, or a deletion, email legal@acami.com from the address on the account.

13. Changes to this policy

If we change what we collect or what we do with it, we will update this page and move the "Last updated" date at the top. For significant changes we also email the address on your account.

14. Contact

Questions about this policy, or a request about your data, go to legal@acami.com.

ACami, 3841 N Southport Ave Apt 1, Chicago, IL 60613