Terms of Service

Last updated: March 23, 2026

Overview

试试双拼 / Try Shuangpin ("the app") is a Double Pinyin typing practice application available on iOS, macOS, Android, and the web. By using the app, you agree to these terms.

Apple Standard EULA

The iOS and macOS versions of this app are licensed under the Apple Standard End User License Agreement (EULA). By downloading or using the app from the App Store, you agree to the terms of this license.

Subscription & In-App Purchases

  • The app offers free features and optional premium features via subscription or one-time purchase
  • Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period
  • Payment is charged to your App Store or Google Play account at confirmation of purchase
  • You can manage or cancel subscriptions in your device's account settings
  • Refunds are handled by Apple or Google according to their respective policies

User Content

  • You may import custom text for practice purposes
  • All practice data and progress are stored locally on your device
  • You are responsible for the content you import into the app

Intellectual Property

The app, including its design, code, and original content (practice materials, classical text compilations), is the intellectual property of the developer. The classical Chinese texts included in the app are in the public domain.

Disclaimer

The app is provided "as is" without warranty of any kind. We do not guarantee that using the app will achieve any specific level of typing proficiency.

Changes to These Terms

We may update these terms from time to time. Continued use of the app after changes constitutes acceptance of the updated terms.

Contact

If you have any questions about these terms, please contact us at [email protected]

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