Parental consent notice

Version 1 · Updated November 12, 2026 · Effective November 11, 2026

High Bar Learning (HBL) is a math study app for kids. Eric Joseph Anderson, doing business as High Bar Learning, runs it. A federal law, the Children's Online Privacy Protection Act (COPPA), requires us to tell you what HBL collects from your children and to get your consent before they use it. Read this notice, then agree in the app.

Questions and requests go to privacy@highbarlearning.com.

Why we have your email address

We added your email address when we invited you to HBL. We use it to send your sign-in codes and to ask for this consent. If you don't consent, we delete your email address within 30 days of the invitation.

What we collect

From you, the parent:

• Your email address
• When you sign in and out
• Your consent record: the notice version, the name you type, the time, and your internet (IP) address
• Your parent PIN, stored scrambled so no one can read it
• Your time zone, from your browser, and your weekly email settings
• Any feedback you send us

From each child:

• What your child creates: answers, written work and scratch pads, coach chats (every message your child sends and every reply), reports of a problem or coach reply that looks wrong, goals, and other text your child types into HBL.
• How your child practices: the cards, problems, lessons, and sessions your child does, with results, tries, time taken, hints used, and the coach's review of the work.
• Profile and settings: nickname, grade, and avatar, which you pick from a fixed set, the current course, and preferences you or your child choose.

HBL never asks a child for a real name, school, address, photo, or voice. The coach is told never to ask for personal details, and HBL has no way to upload pictures or record sound.

Your browser keeps a sign-in cookie and a few settings, such as light or dark mode. HBL uses no advertising or tracking cookies.

How we use it

We use your child's data only to run HBL's learning features: tracking progress, planning practice, generating problems, reviewing work, and coaching. We also count how much AI each child's work uses, to track our costs, and how often the AI declines a request, to keep the coach safe. We use your email to sign you in, to reach you about your account, and to send you a weekly summary of your children's practice, which you can turn off.

The coach is an AI

The coach is an AI tutor built on Claude, a model made by Anthropic. It can make mistakes, so check anything that looks wrong. It sees what your child is working on, and it hides the answer to a problem until your child solves it or chooses to see the answer. You can read every chat and work review in the parent area, and you or your child can report any reply with the Report button under it. The help page at /safety explains how to use the coach safely.

Who receives data, and why

HBL relies on three services:

• Anthropic generates practice problems, reviews written work, and writes the coach's replies. It receives your child's messages and the work on the current screen: the problem, answers, written work, and progress. Anthropic's commercial terms bar it from using this data to train its models.
• Render hosts the app and its database in the United States.
• Resend sends your sign-in codes, safety alerts, weekly summary, and any warning that an unused profile will be deleted by email. It receives your email address and, in the weekly summary and the warning, each child's nickname, and in the weekly summary also the goal and practice counts. It never sees your child's messages, answers, or work.

HBL shows no ads and sells no data. We share your children's data with no one beyond these services, unless the law requires it.

How long we keep it

We keep your child's data while your family uses HBL, because the app needs the history to track progress. We delete it:

• right away when you delete a profile or your account in the parent area,
• within 30 days after you ask us by email, and
• when a profile goes unused for 12 months. We email you 30 days before, and using the profile again keeps it.

Render's database backups hold deleted data for up to 7 days more, and then it is gone.

Your choices

In the parent area, behind your PIN, you can:

• See each child's progress, problems, coach chats, and work reviews.
• Choose whether you get the weekly email, and on which day and at what time.
• Export all of a child's data as one file.
• Delete a child's profile and data, or your whole account.

You can also email privacy@highbarlearning.com for any of these, and we will act within 30 days.

You can withdraw your consent at any time with Delete account in the parent area or by email. Withdrawing consent deletes your account and all your children's data and stops any further collection.

When we ask again

HBL asks for your consent again, and your children wait until you give it, before HBL:

• collects a new kind of information from children, such as photos, voice recordings, location, or real names
• uses children's data for a new purpose, such as advertising, marketing, research, or training AI models
• shares children's data with a new kind of recipient
• keeps children's data longer than this notice says

These changes raise the Version at the top. Any other change, such as a new feature within the categories above or clearer wording, changes only the Updated date, and the app shows you a note about it.

What you agree to

By checking the two boxes in the app, you confirm:

1. I am the parent or legal guardian of the children I add to HBL.
2. I consent to HBL collecting and using my children's information as this notice describes.