Privacy Policy

Last updated: November 14, 2025

Language Journey ("we", "us", or "our") operates the Language Journey website located at https://learner.xiaofei.ge and the Language Journey mobile applications (collectively, the "Services"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Services.

What Information We Collect

We collect the following information to provide, secure, and improve the Services:

Account information: When you create an account or sign in using Firebase Authentication, we collect your email address and authentication tokens.
Profile and preferences: We store learning preferences, interface settings, and personalization choices so the Services remember your preferred experience.
Learning activity: Reading progress, vocabulary lists, notes, comments, lookup history, and audio playback history are recorded to power core functionality.
Device and technical data: We collect limited device metadata, browser information, and log data (including IP address, timestamps, and error logs) to secure the Services and diagnose issues.
Support interactions: If you contact us for help, we store the communications and any details you share to resolve the request.
User-supplied media: If you upload or import personal learning materials (for example, audiobooks or custom stories), we process those files solely to deliver the requested features, and you can remove them at any time.

How We Use Information

We use collected information to:

Authenticate you and secure account access across web and mobile experiences.
Deliver personalized learning content, track your progress, and synchronize data between devices.
Provide customer support, answer questions, and troubleshoot problems.
Improve the stability, usability, and performance of the Services, including through analytics of aggregated usage patterns.
Comply with legal obligations and enforce our Terms of Use.

Content Ownership and Educational Use

Books, audiobook files, videos, transcripts, stories, subtitle tracks, conversation prompts, and any other media surfaced in Language Journey are provided strictly to support language learning. All copyrights and other intellectual property rights remain with the original publishers, creators, and rights-holders. We do not sell, license, or claim ownership of this content, and availability may change at any time at the request of the owner or host platform.

Some resources are linked or streamed from third-party platforms (for example, YouTube playlists) while others may be supplied by you for personal study (such as imported audiobooks or documents). You are responsible for ensuring that you have the necessary rights to access, upload, or use any media within the Services. Language Journey is not liable for the accuracy, legality, or continued availability of third-party materials, and we will promptly review and address concerns reported by rights-holders.

Mobile App Practices

The Language Journey mobile applications (Android) synchronize with the same backend services as the website. In addition to the information outlined above, the apps may store data locally on your device to support offline reading, vocabulary review, and faster performance. Offline data is encrypted when the device supports it and is synchronized with our servers the next time you connect. The app does not access your contacts, photos, or precise location without your explicit permission.

Cookies and Similar Technologies

We use cookies, local storage, and similar technologies to maintain your session, remember preferences, enable dark mode, and measure basic analytics. You can manage cookies through your browser settings, but some core functionality may not work if cookies are disabled.

How We Share Information

We do not sell your personal information. We share information only in the following circumstances:

With trusted service providers (such as hosting and authentication partners) that process data on our behalf under contractual safeguards.
To comply with applicable law, legal process, or government requests when disclosure is required.
To investigate potential violations of our policies, detect fraud, or protect the safety, rights, or property of Language Journey, our users, or the public.
With your consent or at your direction, for example when you choose to share feedback or collaborate with another user.

Data Retention

We retain your personal information for as long as your account is active or as needed to provide the Services. If you delete your account, we delete or anonymize associated personal information, unless we are required to maintain it for legal, regulatory, or security purposes.

Data Security

We implement administrative, technical, and physical safeguards designed to protect your data against accidental or unlawful destruction, loss, alteration, unauthorized disclosure, or access. No system is completely secure, so we encourage you to use strong passwords and keep your account details confidential.

Your Rights and Choices

Depending on where you live, you may have rights to access, correct, delete, or restrict the processing of your personal information. You can review and update key information in your account settings or by contacting us. We will respond to requests in accordance with applicable laws.

Children's Privacy

Language Journey is intended for learners aged 13 and older. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us so we can take appropriate action.

International Data Transfers

Our servers may be located in the United States or other countries. By using the Services, you consent to the transfer of your personal information to jurisdictions that may have different data protection laws than your home country. When we transfer data internationally, we do so in accordance with applicable legal requirements.

Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or applicable laws. When we make material changes, we will post the updated policy with a new "Last updated" date and provide additional notice if required.

Contact Us

If you have any questions or requests regarding this Privacy Policy or your personal information, please contact us at [email protected].