OnePromise Support

Frequently Asked Questions

Do I need an account to use OnePromise?

No, OnePromise does not require an account. All your data is stored locally on your device.

How do I restore purchases?

If you've previously purchased OnePromise, you can restore your purchase by tapping the "Restore Purchase" button within the app. This is usually found in the settings or purchase screen.

Will my data be lost if I uninstall the app?

Yes, since all data is stored locally on your device, uninstalling the app will delete your data. We recommend backing up important information before uninstalling.

Is OnePromise available on Android?

Currently, OnePromise is only available on iOS devices through the App Store.

How do I report a bug or suggest a feature?

Please use the contact information below to report any issues or suggest improvements. We appreciate your feedback!

Compatibility

OnePromise requires iOS 15.0 or later and is compatible with iPhone and iPad.

Contact Us

If you need further assistance, please contact us:

Email: luotaylor@foxmail.com
Response Time: We aim to respond within 48 hours

For privacy-related inquiries, please see our Privacy Policy.

App Information

Developer: Winlink Technology Information Co. Ltd
Version: 1.0
Last Updated: 2026-04-04