English Air Privacy Policy

Effective Date: October 17, 2026

1. Introduction

English Air ("we," "us," or "our") is a language-learning product that helps users understand English vocabulary in context, save words, and strengthen their learning through review. English Air offers a Chrome browser extension and plans to offer a companion mobile application.

We respect your privacy. This Privacy Policy describes what information English Air processes, how it uses and stores that information, when it shares information with service providers, and how you can manage or delete related data.

2. Information We Process

2.1 Account Information

When you register for or use English Air, we collect your email address for account registration, authentication, and vocabulary-data synchronization across devices.

We do not ask you to provide your real name, telephone number, or other unnecessary personal profile details.

2.2 Vocabulary and Learning Data

To provide English Air's vocabulary-learning features, we process:

• Words and phrases you look up.
• Vocabulary you save.
• Contextual sentences related to your vocabulary lookups.
• Vocabulary explanations.
• Review history, learning progress, and related learning records.

Some vocabulary and lookup data is stored in the cloud for account-related data management and cross-device synchronization.

Review history, learning progress, and related learning records are currently stored only on your mobile device and are not uploaded to our servers.

2.3 Text Used for AI Explanations

When you request an AI-powered vocabulary explanation, English Air processes the selected word or phrase and relevant surrounding text needed to understand its meaning in context. The necessary information is sent to our AI service provider to generate an explanation.

English Air does not intentionally collect your complete browsing history or webpage content unrelated to vocabulary lookups. The address (URL) and title of the webpage on which you look up a word are not collected or sent to our servers.

2.4 Technical and Service Information

To support sign-in, service operation, security, and troubleshooting, we and our service providers may process necessary technical information, such as request-related technical metadata or error information.

2.5 Feature Suggestions

If you use the feature-request board, we store the suggestions you post and the suggestions you vote for on our server, linked to your account. Other users can see a suggestion's text and how many votes it has, but never who posted or voted for it. A suggestion you delete is removed from the board but kept on our server until your account is deleted. Your suggestions and votes are deleted along with your account.

3. How We Use Your Information

We use relevant information to:

• Provide context-aware vocabulary explanations.
• Save and manage vocabulary you look up or bookmark.
• Provide vocabulary review features and record learning progress.
• Synchronize supported vocabulary data across supported devices.
• Authenticate users and manage accounts.
• Maintain service security and reliability.
• Troubleshoot technical issues and improve English Air's functionality.
• Respond to account, user-support, and privacy requests.

English Air does not currently use users' vocabulary queries, contextual text, or learning records to train its own artificial intelligence models.

If we introduce new uses of data in the future, we will update this Privacy Policy and obtain consent before implementing those uses where required by applicable law.

4. Third-Party Service Providers

English Air uses the following services to provide its features:

Google Translation and Speech Services: Used to provide long-sentence translation and word pronunciation features. When users access these features, the relevant text may be transmitted to Google for processing. English Air does not persistently store the content of these translation or pronunciation requests on users' devices or its own servers.

Google Gemini API: When you request an AI explanation, we send the words, phrases, and relevant context needed to generate the explanation to Google's AI service. This information is processed under the applicable Gemini API terms and privacy arrangements.

Supabase: We use Supabase for account authentication services.

Email Delivery Services: We use a third-party email service to send login verification codes and essential account-related emails. Your email address is shared with the email service provider as necessary to deliver these messages.

English Air-managed server: We use a VPS server that we manage to store and manage certain cloud vocabulary data and synchronize supported vocabulary data across devices. The underlying server infrastructure may be provided by a third-party hosting provider.

We do not sell users' personal information to third parties. We share information with relevant service providers only to the extent necessary to provide and maintain English Air, protect security, or comply with applicable laws.

5. AI Model Training

English Air currently uses third-party AI services to generate vocabulary explanations.

We do not currently use your personal learning data, selected webpage text, or vocabulary lookup history to train English Air's own AI models.

If we decide to use user information for model training in the future, we will describe the new use, update this Privacy Policy, and obtain any consent required by applicable law.

6. Data Storage and Retention

English Air uses Supabase to process account authentication information and a VPS server we manage to store certain cloud vocabulary data and provide related data synchronization. Review history, learning progress, and related learning records are currently stored only on users' mobile devices.

We retain relevant data for as long as necessary to provide our services and maintain accounts, and use reasonable security measures to protect it.

When you request account deletion, we will delete cloud personal information and related data associated with the account, except where retention is required or permitted by law.

Deleting your account does not automatically remove learning records stored locally on your device. Those records remain on the device until you clear the relevant application data yourself.

Some deleted cloud information may remain temporarily in secure backups and will be removed according to applicable backup retention schedules.

7. Account and Data Deletion

You can delete your English Air account and associated cloud personal information in either of the following ways:

• iOS app: You can delete your account directly using the account deletion feature in the English Air iOS app.
• Email: You may also request account deletion by emailing support@englishair.aigrove.org with the suggested subject line English Air — Account Deletion Request.

You can request deletion by email even if you only use the Chrome extension and do not have the iOS app installed.

For security, we may need to verify your account ownership before processing an email deletion request.

Deleting your account does not automatically delete learning records stored locally on your mobile device. You can remove these records by clearing the relevant app data.

8. Data Security

We use reasonable technical and organizational safeguards designed to protect information from unauthorized access, disclosure, alteration, or loss, including secure network communications and access controls where applicable. However, no method of electronic storage or transmission can be guaranteed completely secure.

9. Your Privacy Rights

You may contact us to:

• Find out what personal information English Air holds about you.
• Request correction of inaccurate personal information.
• Request deletion of your account and related cloud personal information.
• Learn how we collect, use, and protect your information.

We will handle your requests in accordance with applicable privacy laws.

You can reach us using the email address at the end of this Privacy Policy.

10. Chrome Web Store User Data Policy

English Air complies with the Chrome Web Store User Data Policy, including its Limited Use requirements.

Specifically:

• We use user data only to provide and improve English Air's language-learning features and for purposes necessary to keep the service operating.
• We do not sell user data or use it for personalized advertising.
• We share relevant data with necessary third-party service providers only where permitted by the policy, such as to provide the service, protect security, or comply with legal requirements.
• We do not allow human access to user data except where permitted, such as with explicit user consent, for security, to comply with the law, or involving compliant aggregated and anonymized data.

11. Children's Privacy

English Air is intended for general language-learning users and is not specifically designed for children under 13.

We do not knowingly collect personal information from children under 13 where doing so would fail to meet applicable legal consent requirements. If you believe a child has provided personal information without the required consent, please contact us.

12. Changes to This Privacy Policy

We may update this Privacy Policy if our product features, data practices, service providers, or legal requirements change. We will update the effective date when we do so and provide additional notice where required by applicable law.

13. Contact Us

For questions about this Privacy Policy or requests to access, correct, or delete information, please contact:

Product: English Air
Email: support@englishair.aigrove.org
Location: British Columbia, Canada