(Last Updated: December 1, 2025)

This document contains the Terms of Use and Privacy Policy for the LockStudy mobile application (the “App” or “Service”).

The App provides study timers, app usage restrictions (lock modes), focus session logging, usage pattern analysis, and widget features.

LockStudy does not collect, store, or transmit personal data, and all essential processing occurs on-device.

1. Purpose

This document defines the rights, responsibilities, and obligations between the user and the operator, and explains the purpose of permissions used within the App as well as principles for protecting personal information.

2. Definitions

• “Service”: The LockStudy app and all related features
• “User”: An individual who installs and uses LockStudy
• “Operator”: The entity that provides and manages LockStudy

3. Effectiveness and Changes to the Terms

• These Terms take effect when the user installs or uses the App.
• The operator may modify the Terms to improve the Service or comply with legal requirements. Major changes will be announced within the App or through page updates.
• If the user does not agree with the updated Terms, the user may stop using the Service by uninstalling the App.

4. Scope of Services

LockStudy provides the following features: