The app is not working as expected
Restart the app, confirm that iOS is up to date, and check whether an app update is available in the App Store. If the problem continues, send a detailed email with screenshots if available.
Support for iOS apps
Help for apps published by YoonSu
Use this page for general app support, troubleshooting, and account or privacy questions related to apps distributed through the App Store.
Email supportContact
Get help by email
For support requests, bug reports, refund-related app questions, or privacy inquiries, please contact:
jys_1109@naver.comPlease include the app name, device model, iOS version, and a short description of the issue so the request can be reviewed efficiently.
FAQ
Common support topics
I found a bug
Email the support address with the app name, steps to reproduce the issue, expected result, actual result, and the app version.
I have a billing or purchase question
App Store purchases and refunds are managed by Apple. For app behavior related to a purchase, email support with the relevant details.
I want to request data deletion
Send an email from the address associated with your request and include the app name. Data requests will be reviewed according to the app's privacy practices.
Privacy
Privacy inquiries
For privacy questions, data access requests, or data deletion requests related to supported apps, contact jys_1109@naver.com.
This support page is intended as a common support destination for App Store listings. App-specific privacy details may be provided separately when required.