English Coach

개인정보 처리방침

English Coach는 ChatGPT 안에서 영어 말하기 레슨을 진행하는 플러그인입니다. 레슨을 이어 가는 데 필요한 것만 저장합니다. 이름, 이메일, 대화 원문, 음성은 받지 않습니다.

시행일: 2026년 10월 20일

1. 책임자

운영자와 개인정보 보호책임자: Darak Studio, help@darak.studio

2. 모으는 정보

모으지 않는 것: 이름, 이메일, 전화번호, 대화 원문, 음성, 결제 정보. 우리 웹페이지는 쿠키를 쓰지 않습니다.

3. 쓰는 목적

4. 처리를 맡기는 곳과 국외 이전

위 외에는 누구에게도 제공하거나 팔지 않습니다. 광고에 쓰지 않습니다.

5. 보관 기간과 파기

6. 학습자의 권리

7. 안전을 위한 조치

익명 식별자는 비밀값과 함께 해시해 저장하고, 비밀값은 서버 설정에만 둡니다. 모든 연결은 HTTPS로 암호화합니다. 데이터베이스에는 운영자만 접근합니다.

8. 아동

만 14세 미만은 이용할 수 없습니다. ChatGPT 이용 연령 기준도 함께 따릅니다.

9. 바뀔 때

이 방침을 바꾸면 이 페이지에 시행일과 바뀐 내용을 적습니다.

Privacy Policy

English Coach is a ChatGPT plugin that runs English speaking lessons. It keeps only what it needs to continue your lessons. It does not receive your name, email, conversation transcripts or audio.

Effective: October 20, 2026

1. Who is responsible

Operator and privacy contact: Darak Studio, help@darak.studio

2. What we collect

  • Anonymous learner number: the anonymous user identifier ChatGPT sends to plugins, combined with a server secret and turned into a one-way SHA-256 hash. The original identifier is not stored.
  • Lesson results: lesson id, session kind, completed or not, practice minutes (set by session kind), whether the role-play was retried, up to 3 short mistake notes (80 characters each), a one-line summary (120 characters, not a transcript), correct/total counts, a 1-5 comfort rating, and the time saved.
  • Preferences: weekly goal (3, 4 or 5 days), role-play track, time zone (Korea by default).
  • Server logs: which feature was used, when, and the first 8 characters of the anonymous learner number.

We do not collect names, emails, phone numbers, conversation transcripts, audio or payment data. Our web pages set no cookies.

3. Why

To continue your course, bring back last lesson's mistakes for review, compute practice time, levels, weekly rhythm and badges, look at totals across all learners to improve the service, and run feature experiments (a fixed group per anonymous number decides only whether the practice level is spoken at the end of a lesson; results are looked at in aggregate).

4. Processors and international transfer

Railway Corporation (USA) hosts the server and database in its Singapore region; the data in section 2 is sent there over the internet whenever a lesson feature is used and kept for the period in section 5. Contact: Railway privacy policy. We return lesson scripts and progress summaries to ChatGPT; your ChatGPT conversations are covered by OpenAI's privacy policy. We do not sell or share data with anyone else and do not use it for advertising.

5. Retention

Lesson results and preferences: until you delete them, and automatically deleted after 12 months without use (checked daily). Server logs: visible to the operator for 30 days.

6. Your rights

Say "delete my data" (내 기록 지워 줘) to English Coach in ChatGPT to delete everything at once. Say "show my progress" to hear your level, practice time and this week's record. Other requests: help@darak.studio. Because we do not know your name or email, we cannot find your record from an email alone; please make record requests in ChatGPT.

7. Security

Identifiers are hashed with a secret kept only in the server configuration. All connections use HTTPS. Only the operator can access the database.

8. Children

Not for children under 14. ChatGPT's own age requirements also apply.

9. Changes

Changes are posted on this page with a new effective date.