Privacy Policy

The Basics

I'm an IB Maths teacher sharing something I built. This page explains what data I collect and what I do with it.

The short version: I collect basic account info and track how you use the site to make it better. I don't sell your data. I don't share it with advertisers. If you're a student, your teachers can see your progress because that's the point of the platform.

What I Collect

Your Account

Name, email, username, and which school you're from. If you're a student, your teacher might add a student ID.

Your Learning

Which courses you're in, your assignments and grades, quiz results, and what topics you've completed. This is how teachers track your progress.

How You Use the Site

Which pages you visit, how long you stay, what device and browser you're using. Standard website stuff to help me fix bugs and improve things.

Your Question Activity

When you view, practise, self-mark, or are assigned questions, I record what you did and when — questions tried, your self-marked scores, time spent, confidence ratings, and which solutions you revealed.

Why: this is to support your continuous development. The teachers at your school can see this activity for the students in their own classes, so they can help your learning — seeing where you're doing well and where you might need support. You can always see your own activity on your Mastery page. I also use this data, anonymised and aggregated (so it doesn't identify you), to keep improving the questions and the platform.

Payment Information (if applicable)

If you or your school pays for JMaths directly, I collect billing information like name, email, and payment details. I never see or store your credit card number - that's handled securely by Lemon Squeezy, our payment processor.

What I Do With It

Make the platform work and improve it
Show teachers how their students are doing
Send you important updates (rarely)
Fix bugs and make things faster
Follow the law when required

What I DON'T do: Sell your data. Share it with advertisers. Use it for marketing. This exists to help you learn maths. That's it.

Who Can See Your Data

I don't sell student data. Here's who can see it:

Your Teachers: If you're a student, your teachers see your grades and progress. That's the point.
Your School: They can authorize parent access to your data.
The Services I Use: Heroku hosts the site, Google Cloud stores uploaded files, PostgreSQL stores the database. If you make a payment, Lemon Squeezy processes it securely. These companies have strict privacy agreements — see the full list of sub-processors.
The Law: Only if a court orders me to share something.

Security

I use industry-standard security:

All data is encrypted when transmitted (HTTPS)
Hosted on secure servers (Heroku, Google Cloud)
Regular security updates and backups
I'm the only person with system access

No system is 100% secure, but I do everything I can to keep your data safe.

Your Rights

You can:

See what data I have about you
Ask me to fix incorrect information
Request deletion (though your school might require keeping some records)
Opt out of non-essential emails

Use the contact form.

Cookies

I use essential cookies to keep you logged in, remember your settings, and protect you from security threats (CSRF). These are necessary for the site to function.

I don't track individual users or use analytics that collect personal information.

Students Under 13 (COPPA)

If you're under 13, your school needs to authorize your account and your parents need to consent. This complies with COPPA (Children's Online Privacy Protection Act).

Schools & Student Privacy

If your school uses this site, they're responsible for getting proper consent to add students (including students under 13). Educational records are only shared with authorized school personnel.

How Long I Keep Data

Active accounts: As long as you're using the platform
Closed accounts: 1 year for institutional records, then deleted or anonymized
Legal requirements: If education laws require keeping certain records longer

International Users

The servers are in the US, so if you're elsewhere, your data crosses borders. I comply with GDPR and other privacy laws to keep your data protected wherever you are.

Changes

I might update this policy occasionally. If I make big changes, I'll email you. If you keep using the site after that, it means you're okay with the changes.

Questions?