Chapterly

Privacy Notice

Sungheon Jeong (the "Operator") handles personal data as described below while providing Chapterly. Last updated 2026-11-13.

1. What we collect

Account: email address, name, password (stored hashed). With Google sign-in, the email and name Google provides.

Usage: your plan, monthly generation counts, billing status. Card details never reach the Operator; Polar handles them.

What you upload: passages, PDFs, photos, students' writing. This content is sent to the AI model to produce your output and is not stored on the Operator's servers. Worksheets you make and your school branding are kept only in your browser.

Access logs: request logs (IP address, browser, time) used to run the Service and investigate errors.

2. Why

Managing accounts and sign-in, applying plan limits, billing and receipts, producing output, answering support requests, and keeping the Service reliable.

3. Who processes it for us

Cloudflare, Inc.: hosting of the site and database on its global edge network.

Polar Software Inc.: Merchant of Record for paid plans, handling payment, tax, receipts and refunds. Your email and country are shared with Polar at checkout.

OpenCode (Anomaly Innovations) and its model provider (Anthropic): the AI model that produces output from the passages and writing you upload. Content sent to it is not used to train models.

Google LLC: only if you choose Google sign-in.

4. How long

Account data and usage records are kept until you delete your account, then removed without delay. Polar keeps billing records as tax law requires.

Uploaded passages and writing do not remain on the Operator's servers after your output is produced. Access logs are deleted within 30 days.

5. Your rights

You can ask to see, correct, delete, or stop the processing of your data. Write to support@english-ta.com; we answer within 10 days.

You can delete your account yourself from the account page.

6. Cookies

Only a session cookie that keeps you signed in. No advertising or tracking cookies.

7. Children

The Service is for teachers. Students' writing is uploaded by a teacher for feedback and need not carry the student's name. Accounts are not created for children under 14.

8. Contact

Data controller: Sungheon Jeong

Email: support@english-ta.com