Privacy Policy

1. Information we collect

• Account information: depending on your sign-in method, your phone number, name, email address, sign-in provider identifiers, and account and authentication records.
• Learning content: recordings, messages, essays, images or documents you submit, and the transcripts, AI responses, assessments, practice history and learning progress generated during use.
• Technical and usage information: IP address, device and browser information, app version, language settings, feature interactions and diagnostic or error logs.
• Purchase information: product, transaction, receipt and subscription-status information from app stores and payment or subscription providers, used to verify purchases and provide paid features.
• Communications: information you choose to provide when contacting support, submitting feedback or requesting account assistance.

2. Why we use information

We use information to create and protect accounts, provide speaking practice and writing feedback, generate reports, save progress, manage subscriptions, respond to requests, diagnose issues and understand feature usage. We also process information to prevent abuse and meet legal obligations. Where applicable, processing relies on providing the service you request, your consent, legal obligations or legitimate interests in operating and protecting the service. Without required information, the corresponding feature may be unavailable.

3. Audio and AI processing

When you use speech or AI features, relevant recordings, transcripts, prompts and conversation context may be sent to speech recognition, speech synthesis and AI providers to generate responses, pronunciation feedback and assessments. Depending on the feature and configuration, providers may include OpenAI, Microsoft Azure and Alibaba Cloud. Processing may occur on your device or remote servers. Avoid submitting unnecessary sensitive information or other people’s information without authorization. AI feedback is generated automatically and may contain errors.

4. Service providers and disclosures

We use providers for hosting, storage, authentication, AI and speech processing, payments, subscriptions, analytics and error monitoring. Depending on the platform and feature, these include Apple, WeChat, RevenueCat, Firebase, Mixpanel, Sentry and the AI providers above. They receive information relevant to their role, such as learning inputs, account identifiers, purchases or diagnostic events. Their privacy policies may also apply when you use their services directly. We may disclose information where required by law, to protect rights and security, or during a merger or business transfer subject to applicable requirements.

5. Permissions and local storage

Features may request microphone access for speaking practice, camera or photo access for uploads, and notification permission for reminders. Manage permissions in device settings; disabling them may limit related features. Our website and apps use local storage or similar technologies to maintain sign-in state and preferences. Clearing website data in your browser may sign you out or reset preferences.

6. Retention, security and international processing

We retain information as needed for the purposes described here, considering account activity, access to learning history, support needs, security and legal recordkeeping requirements. Retention periods may differ by data type. We use technical and organizational measures to protect information, but no storage or transmission method is completely secure. Providers may process information outside your country; applicable transfer safeguards and consent requirements apply where required. Contact us about retention or transfers relevant to your account.

7. Your choices and rights

Depending on applicable law, you may request access, correction, a copy, deletion or portability of information, object to or restrict processing, and withdraw consent where processing depends on it. Withdrawal does not affect earlier lawful processing. Use account settings or email us. You can request account deletion in the app where available, or contact us by email. We will handle your request and related personal information in accordance with applicable law. Account deletion does not automatically cancel app-store subscriptions; manage these with the purchase provider. We may verify your identity and retain legally required information. You may also complain to your local data protection authority.

8. Children’s privacy

If you are below the age at which you may independently consent to personal information processing in your location, use the service with a parent’s or guardian’s permission and involvement where required. Parents or guardians who believe a child provided information without required authorization can contact us to request review and deletion.

9. Policy updates

We may update this policy as our services or requirements change. The date above identifies the latest revision. We will provide additional notice and request consent for material changes where applicable law requires it.

Contact us

For privacy questions or personal information requests, contact us below. Describe your request and provide enough account information to identify relevant records. Do not send passwords or verification codes.

万物引力科技（北京）有限公司