Privacy Policy

Overview

UnLethe helps you save, enrich, review, and practice vocabulary. This Privacy Policy explains what information the app and related services handle to provide those features.

UnLethe also includes an AI tutor and lets you connect third-party AI assistants to your account.

We do not sell your personal information. We do not use your saved vocabulary for advertising.

Vocabulary and Learning Data

UnLethe stores the vocabulary data you create in the app, such as words, phrases, translations, examples, forms and selected languages, on our servers so it can sync across your devices and power features like reviews and suggestions.

Sync and Apple Services

UnLethe uses Apple services for App Store distribution and purchases, device permissions, notifications, and widgets. Apple services are governed by Apple's own privacy terms.

App and Service Information

UnLethe may use anonymous app identifiers, device records, usage details, app version, operating system information, IP address, and service logs.

This information is used to keep the app and related services working, debug problems, and prevent abuse.

Vocabulary Suggestions

When UnLethe helps generate vocabulary suggestions, the word or phrase, selected languages, and context you provide may be sent to our service and an AI provider.

We do not use your vocabulary content to train AI models. AI providers may process requests according to their own terms and data settings.

You can edit suggested content, and your corrections take priority.

AI Tutor

When you use the AI tutor, your messages, your recent conversation and relevant vocabulary from your account are sent to our service and an AI provider to generate replies. Your conversations are stored so they're available across your devices.

We do not use your conversations to train AI models. AI providers process requests according to their own terms and data settings.

Please be mindful about sharing personal information in your messages.

AI Assistant Connections

You can choose to connect a third-party AI assistant to your UnLethe account. A connected assistant can access and update your vocabulary and learning data on your behalf. You can disconnect it at any time.

Information an assistant accesses through UnLethe is also handled by that assistant's provider under its own terms.

We keep records of assistant activity to provide the feature, keep it secure and improve it.

Analytics

We use analytics, including Amplitude, to understand which features are useful, where people run into problems, and where the app needs improvement.

Analytics may include general app usage, device and app information, and diagnostics.

Analytics does not include the content of your conversations or your vocabulary.

Third-Party Services

UnLethe may use third-party services to operate the app, provide sync, process purchases, generate vocabulary suggestions, power the AI tutor, measure app usage, and respond to support requests.

These services may include Apple, AI providers, analytics providers, hosting providers, support tools, and AI assistants you choose to connect.

Support

If you contact us for support, we may receive your email address, message content, screenshots or diagnostic details you choose to send, and any other information needed to respond.

Retention and Deletion

UnLethe keeps information only as long as reasonably needed to provide the app, keep related services working, maintain security, meet legal obligations, and respond to support requests.

You can delete vocabulary entries in the app, change notification permissions in iOS settings, or uninstall the app to remove local app data from your device.

If you contact us with a deletion or privacy request, we may need details from your support request to find records related to your app installation or device.

Security

We use reasonable technical and organizational measures to protect information. No method of storage or transmission is completely secure.

Your Rights and Choices

Depending on where you live, you may have privacy rights such as requesting access to, correction of, or deletion of information associated with you.

To make a privacy request, contact us at support@unlethe.com. We may need to verify your request before acting on it.

Changes

We may update this Privacy Policy from time to time. If we make material changes, we will update the effective date and may provide additional notice through the app or website.

Contact

For privacy questions or requests, contact support@unlethe.com.