Privacy Policy
Last Updated: March 2026
Introduction
Welcome to Readmigo ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and related services (collectively, the "Service").
Please read this Privacy Policy carefully. By using the Service, you agree to the collection and use of information in accordance with this policy.
Information We Collect
Information You Provide
- Account Information: When you create an account, we collect your email address and display name. If you sign in with Apple or Google, we receive your name and email from those services.
- Profile Information: You may optionally provide your native language, English proficiency level, and learning goals.
- User Content: Books you add to your library, reading progress, and any content you create (such as postcards or comments).
Information Collected Automatically
- Usage Data: We collect information about how you use the Service, including reading sessions, words looked up, AI interactions, and features used.
- Device Information: We collect device type, operating system version, app version, and device identifiers.
- Log Data: Server logs that may include IP addresses, access times, and pages viewed.
AI Interaction Data
When you use our AI-powered features (word explanations, sentence simplification, translations, Q&A), we process:
- The text you select or input
- The context of your reading
- Your interaction history to improve responses
How We Use Your Information
We use the information we collect to:
- Provide the Service: Deliver reading features and AI assistance
- Personalize Experience: Tailor book recommendations and difficulty levels to your proficiency
- Improve the Service: Analyze usage patterns to enhance features and fix issues
- Communicate: Send service updates, respond to inquiries, and provide customer support
- Security: Detect and prevent fraud, abuse, and security incidents
Legal Basis for Processing (EEA/UK Users)
If you are located in the European Economic Area (EEA) or the United Kingdom, we process your personal data based on the following legal grounds:
| Processing Activity | Legal Basis |
|---|---|
| Account creation and authentication | Contract performance |
| Providing reading, vocabulary, and AI features | Contract performance |
| Syncing reading progress across devices | Contract performance |
| Personalizing book recommendations | Legitimate interest (improving user experience) |
| Usage analytics and service improvement | Legitimate interest (product development) |
| Error monitoring and crash reporting | Legitimate interest (service reliability) |
| Security and fraud prevention | Legitimate interest (protecting users and service) |
| Service updates and customer support | Contract performance |
| Marketing communications (if applicable) | Consent (you may withdraw at any time) |
Where we rely on legitimate interests, we have assessed that these interests are not overridden by your data protection rights. You have the right to object to processing based on legitimate interests at any time by contacting privacy@readmigo.app.
Data Sharing
We do not sell your personal information. We may share information with:
- Service Providers: Third-party companies that help us operate the Service (see "Third-Party Service Providers" below)
- Legal Requirements: When required by law or to protect our rights
- Business Transfers: In connection with a merger, acquisition, or sale of assets
Third-Party Service Providers
We use the following third-party services to operate and improve Readmigo:
| Service | Provider | Data Processed | Server Location | Purpose |
|---|---|---|---|---|
| Database | Neon (neon.tech) | Account data, reading progress, vocabulary, user content | Cloud (US region) | Core data storage |
| Analytics | PostHog | Usage events, feature interactions, anonymous behavioral data | United States | Product analytics and improvement |
| Error Monitoring | Sentry | Crash logs, device info, app state at time of error | United States | Bug detection and resolution |
| Authentication | Apple Sign-In | Name, email (as authorized by you) | United States | Account login |
| Authentication | Google Sign-In | Name, email (as authorized by you) | United States | Account login |
| AI - Word Explanation | DeepSeek | Selected text (words/sentences from books) | China | Real-time reading assistance |
| AI - Content Q&A | OpenAI | User questions and book context | United States | Reading comprehension assistance |
| AI - Fallback | Anthropic | Selected text, user queries (when primary AI unavailable) | United States | Backup AI processing |
Important Notes About AI Processing
- When you tap a word or sentence for explanation, the selected text is sent to our AI providers for processing.
- AI providers process your queries in real-time and do not retain your data for model training.
- We do not send your personal information (name, email, etc.) to AI providers — only the book text and your query.
For EU/EEA users: Data transfers to the United States are conducted under the EU-U.S. Data Privacy Framework (DPF) where the provider is certified, or under Standard Contractual Clauses (SCCs) approved by the European Commission. Data transfers to China (DeepSeek) are conducted under Standard Contractual Clauses (SCCs).
Data Storage and Security
- Storage: Your data is stored on secure servers using industry-standard encryption
- Location: Your core account and reading data is stored on Neon (PostgreSQL) cloud servers. Usage analytics are processed by PostHog (United States). Error monitoring data is processed by Sentry (United States). AI features are processed by DeepSeek, OpenAI, and Anthropic. See "Third-Party Service Providers" above for details
- Retention: We retain your data while your account is active. You can request deletion at any time
- Security Measures: We implement technical and organizational measures to protect your data
Your Rights
Depending on your location, you may have the right to:
- Access: Request a copy of your personal data
- Correction: Request correction of inaccurate data
- Deletion: Request deletion of your data
- Portability: Request transfer of your data
- Opt-out: Opt out of certain data processing activities
To exercise these rights, contact us at privacy@readmigo.app.
Children's Privacy
The Service is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected such information, please contact us.
International Data Transfers
Your information may be transferred to and processed in countries outside your country of residence, including the United States and China. We use the following safeguards for international data transfers:
- EU-U.S. Data Privacy Framework (DPF): For transfers to U.S.-based providers that are DPF-certified (such as Google).
- Standard Contractual Clauses (SCCs): For transfers to providers not covered by an adequacy decision, we use SCCs approved by the European Commission.
- Adequacy Decisions: Where the European Commission has determined that a country provides an adequate level of data protection.
For EEA/UK users: You have the right to request a copy of the safeguards we use for international transfers by contacting privacy@readmigo.app.
Changes to This Policy
We may update this Privacy Policy periodically. We will notify you of any material changes by posting the new policy on this page and updating the "Last Updated" date.
Contact Us
If you have questions about this Privacy Policy, please contact us:
- Email: privacy@readmigo.app
- Address: 42 Church Ave, Mascot, NSW 2020, Sydney, Australia
Appendix: Data We Collect
| Data Type | Purpose | Retention |
|---|---|---|
| Account, communication | Until account deletion | |
| Display Name | Personalization | Until account deletion |
| Reading Progress | Sync across devices | Until account deletion |
| Vocabulary | Learning features | Until account deletion |
| Usage Analytics | Service improvement | 2 years |
| AI Query Text | AI reading assistance | Not retained after processing |
| Device Info | Security, compatibility | 1 year |