Privacy Policy

Service: SEETogether · Effective 18 October 2026 (revised) · 한국어

This English text is provided for convenience. If it differs from the Korean version, the Korean version prevails.

SEETogether (the “Service”) helps musicians view and annotate sheet music and, if they wish, read together as a group. We handle personal data with care and collect only what the Service needs.

1. What we collect and why

CategoryDataPurpose
Social sign-in (Naver, Kakao, Google, Apple)User identifier, nickname, and optionally name, email address and profile pictureIdentifying your account, keeping you signed in, showing who wrote which handwriting in a group
Using the ServiceDisplay name, group membership, the score and page you are viewing, connection time, your device’s country/region settingShowing group member lists and live presence, understanding usage by country and answering support requests
User contentScore PDFs you upload and handwriting you drawViewing scores, saving handwriting and sharing within a group
Plus purchases and existing subscriptionsTransaction ID and original transaction ID provided by Apple, product ID, billing environment, purchase, expiry, cancellation and refund status, account-link token, gift codes and the accounts that bought or redeemed themConfirming personal purchases and existing group access, issuing and redeeming gift codes, preventing duplicate or fraudulent use, reflecting refunds and cancellations. Payment details such as card numbers are handled by Apple and never reach the Service
Feedback boardDisplay name, posts and replies, public/private setting, likes and reports, moderation recordsReceiving and answering feedback, showing public posts, handling reports and abuse, selecting reward recipients
Stability diagnosticsApp version, device and OS information, call stacks at crashes or hangs, a pseudonymised account identifierFinding the causes of crashes and hangs and improving stability

We do not collect data the Service does not need, such as gender, date of birth, age range or phone number.

Diagnostics never include score file names, score content, handwriting or group passwords. The account identifier is sent as an irreversible hash rather than in plain form.

Personal scores, notes, handwriting and performances are stored on the device. Content uploaded to a group is sent to our sharing servers. When you connect Google Drive, app backups are sent to your chosen Google account, not a separate SEETO backup server. Drive connection details (account identifier, email and authentication tokens) are kept in this device’s secure storage and excluded from backup files. Disconnecting removes the local connection details; existing backups remain in your Drive. File export delivers a copy to the storage location you choose.

2. Retention

When you delete your account, your account data and the handwriting you created are deleted without delay. Score files you uploaded to a group may still be in use by other members, so they are deleted when the group administrator removes them or when the group is deleted. Paid transaction information is kept while access remains active to verify purchases, restoration and refunds. Contract and payment records are retained for five years as required by applicable law, and deleted once the retention purpose and legal period have ended. Feedback posts are deleted when you delete them or delete your account; report-handling records are kept for 1 year after the report is closed. Where the law requires longer retention, we keep the data for that period.

3. Sharing with third parties

We do not sell or provide your personal data to third parties. We entrust the following processing needed to run the Service.

ProcessorTask
Google LLC (Firebase)Authentication, data storage, file storage, server functions, stability diagnostics via Crashlytics
Apple Inc. (App Store)Billing, renewal and refunds for the paid plan, and providing transaction information

4. Retention of diagnostics

Crash call stacks and related identifiers sent to Firebase Crashlytics are kept for 90 days under Google’s Firebase retention policy, after which deletion from live and backup systems begins.

5. Your rights

You can change your display name or sign out at any time from the My Info screen in the app, and you can request deletion of your account and personal data by deleting your account. Deletion is immediate and cannot be undone. Deleting your account does not cancel an Apple subscription; cancel it separately in your device’s Apple account settings. You can delete your own feedback posts in the app.

6. Security

All communication is encrypted with HTTPS, and data access is restricted by server security rules that check group membership. Social sign-in secrets are never stored in the app; they are kept only in the server’s secure store.

7. Contact

Privacy enquiries: sinbun001@gmail.com

8. Changes

If this policy changes, we will announce the change on this page before it takes effect.