Korean History Exam Prep ("the app") is a study app for the Korean History Proficiency written exam. We value your privacy and comply with applicable laws including the Korean Personal Information Protection Act. This policy explains what the app collects and how it is used.
The app has no sign-up or login, and has no feature that asks for your name, email, phone number or any other personal information.
To improve question quality and operate the service, the app sends the following anonymous information to Google Firebase and PostHog. It contains nothing that identifies you personally.
| Item | Details |
|---|---|
| Collected | A randomly generated anonymous identifier (not linked to any account or name) Per-question right/wrong aggregates (which questions are missed often) App usage events (screen usage, ad impressions/clicks) |
| Purpose | Question error/difficulty analysis, feature improvement, service statistics |
| Retention | Until the statistical purpose is fulfilled (kept in non-identifiable form) |
This anonymous collection is always on and the app has no switch to turn it off. Because only non-identifying information is collected, this notice takes the place of a separate consent step. If you want the collection stopped, contact us at the address below; study features remain fully available either way.
The app shows Google AdMob ads (banner and rewarded). Google may automatically collect and process the following to serve ads and prevent fraud:
On iOS the app does not request tracking permission, in which case the IDFA is not accessed.
You can limit personalized ads in your device settings (Android: Settings → Google → Ads / iOS: Settings → Privacy & Security → Tracking).
Users in the EEA and the UK. In those regions a Google User Messaging Platform (UMP) consent form is shown when the app launches under the GDPR, and ads are served as personalized or non-personalized according to your choice. Declining does not limit any study feature. You can change your choice at any time under "Ad privacy settings (GDPR)" near the bottom of the app's Settings screen (the item appears only for users in those regions).
| Processor | Delegated work |
|---|---|
| Google LLC (Firebase / Cloud Firestore) | Storage and management of anonymous usage/question statistics |
| Google LLC (AdMob) | In-app ad serving and performance measurement |
| PostHog, Inc. | Product analytics on anonymous usage statistics (USA — see the cross-border transfer section) |
Part of the anonymous statistics in Section 2 is transferred abroad for product analytics. Nothing personally identifiable is included.
| Item | Details |
|---|---|
| Recipient | PostHog, Inc. (privacy@posthog.com) |
| Country | United States (transferred over the network at time of use) |
| Transferred data | Anonymous identifier, app usage events (screen usage, study progress, ad impressions) |
| Method | Sent from the app over encrypted communication (HTTPS) |
| Purpose / retention | Service usage analytics / until the purpose is fulfilled |
This transfer takes place at all times and the app has no switch to stop it individually. To request that it stop, contact us at the address below; study features remain fully available either way.
The transfer constitutes processing delegation necessary to provide and improve the service. Under Article 28-8(1)3 of the Personal Information Protection Act of Korea, it is carried out by disclosing the transferred items, country, timing, method, purpose and retention period in this policy — no separate consent is obtained for each transfer.
We do not sell or provide your personal information to third parties.
You may request access, correction, deletion, or suspension of processing at any time via the contact below. Locally stored study records can be deleted directly in the app settings.
The following applies in addition when you use the app in those regions.
| Item | Details |
|---|---|
| Controller | Seo Hyuncheol, developer (seohcz1@gmail.com) |
| Legal basis | Processing for advertising — consent (GDPR Art. 6(1)(a)),
obtained through the UMP form described in Section 3. Anonymous usage statistics and service operation — legitimate interests (Art. 6(1)(f)): identifying faulty questions and improving features, limited to non-identifying data. |
| Your rights | Access, rectification, erasure, restriction of processing, objection to processing, data portability, and withdrawal of consent. Withdrawal is possible at any time and does not affect the lawfulness of processing carried out before it. |
| How to exercise | Ad consent can be changed directly under "Ad privacy settings (GDPR)" in the app's Settings screen. Send any other request to the email above and we will act on it without delay. |
| Complaints | You have the right to lodge a complaint with the supervisory authority of your member state (the ICO in the UK). |
The app has no sign-up, so we hold nothing that identifies you. As a result we may be unable to single out one person's records in response to an access or erasure request; in that case we will tell you so, as provided by Art. 11 GDPR. Study records stored on your device can be deleted directly in the app's Settings screen and are removed when you uninstall the app.
The app is intended for national technical qualification study and does not knowingly collect personal information from children under 14.
Changes will be announced via app updates or this page.