Privacy Policy
Last updated: April 2026
The short version
DrFrostSync never sees your homework answers, question content, or scores. We only store a summary of which skills you struggled with — no questions, no answers, no personal academic records.
What we collect
- ✓Your email address — used to identify your account
- ✓Skill names and topic units — e.g. "Density", "Compound Measures" — the category labels DrFrost shows you
- ✓Wrong-answer count per skill — a single number per skill, e.g. ×3 — not the questions or your responses
- ✓Practice link URLs — the links DrFrost already provides publicly for each skill
- ✓Status you set — whether you marked a skill as Not Started, In Progress, or Done
What we never collect
- ✕Homework questions or exam questions
- ✕Your answers or solutions to any questions
- ✕Individual scores, grades, or marks
- ✕Your browsing history on DrFrost
- ✕Any content from DrFrost pages beyond skill labels
How the extension works
The DrFrostSync browser extension reads only the skill summary page on DrFrost — the same page you can see yourself when you review your results. It extracts the skill name, topic unit, and how many times you got that skill wrong. Nothing else is read, sent, or stored. The extension does not record keystrokes, take screenshots, or access any other page.
Data storage
Your skill summaries are stored in Google Firestore, a cloud database operated by Google. Data is associated with your account and is not shared with any third party. You can delete your account and all associated data at any time by contacting us.
Payments
Payment is handled by Stripe. DrFrostSync never sees or stores your card details. Stripe's privacy policy applies to payment data.
Contact
Questions about your data? Email us at lishan.shuwei@gmail.com.