Terms of Use

Last updated: June 18, 2026

By using ThinkFlow, the user agrees to these terms.

1. Purpose of the Service

ThinkFlow is a learning tool that helps users practice expressing their own thoughts in another language. AI feedback is provided for learning support and does not replace professional translation, exam scoring, legal, medical, or financial advice.

2. User Input

The user is responsible for the sentences and content they enter. We recommend not entering sensitive personal information, passwords, resident registration numbers, financial information, or private information about others.

3. AI Feedback

AI feedback and suggested expressions may not always be perfect or the only correct answer. Users should treat results as learning references and review important sentences themselves.

4. Restricted Use

The service may not be used for:

• Creating illegal or harmful content
• Violating the rights, privacy, or reputation of others
• Excessively calling the server or API or harming service stability

5. Data and Storage

Practice records are stored locally on the user's device by default. When AI feedback is requested, some input may be sent to the server and AI provider. See the Privacy Policy for details.

6. Service Changes

ThinkFlow may change features, wording, servers, AI models, or pricing policies. Some features in early versions may be experimental.

7. Limitation of Liability

ThinkFlow is provided as a tool for improving the learning experience and does not guarantee the accuracy of AI feedback or fitness for a specific purpose. The user is responsible for decisions made based on AI results.