Privacy Policy
Broaden — Daily Reading Habit App · Last updated: [10 March 2026]
1. Who We Are
Broaden is operated by [DG Development] ("we", "us", "our"). We are based in the United Kingdom. If you have any questions about this privacy policy or how we handle your data, please contact us at [DGDev1008@gmail.com].
2. What Data We Collect
Account Information
- Email address (when you sign up with email)
- Name (if you choose to add one)
- Google account identifier (if you sign in with Google)
- Avatar selection
Reading Activity
- Topics you select as interests
- Articles you open, read, save, and mark as read
- Article feedback (thumbs up/down ratings)
- Reading streak data (streak count, last read date)
- Articles read log (timestamps of reading activity)
App Usage
- Badge and achievement progress
- Streak freeze usage
- Friends and leaderboard data
- Referral activity
- Notification preferences
- Tutorial completion status
Analytics Data
- App usage events (screens viewed, features used, buttons tapped)
- Device type and operating system
- General engagement patterns
Subscription Data
- Subscription status (free or Pro)
- Purchase history (processed by Google Play / Apple App Store)
3. How We Use Your Data
- To provide the service: Curating your daily articles based on your topic preferences and feedback, tracking your reading streak, managing your saved articles and notes, and operating the friends leaderboard.
- To improve article curation: Your thumbs up/down feedback and reading patterns are used to personalise future article recommendations via our AI curation system.
- To manage your account: Authentication, subscription management, and syncing your data across devices.
- To analyse and improve the app: Understanding how features are used so we can make Broaden better. We use Mixpanel for analytics.
- To send notifications: Daily reading reminders, if you choose to enable them.
4. AI-Powered Article Curation
Broaden uses artificial intelligence (Anthropic's Claude API) to select your daily articles. The AI receives your selected topics and a summary of your recent feedback (articles you liked or disliked) to personalise recommendations. The AI does not receive your email address, name, or other identifying information — only your topic preferences and anonymised feedback patterns.
5. Legal Basis for Processing
Under UK GDPR, we process your data on the following legal bases:
- Contract: Processing necessary to provide the Broaden service you signed up for.
- Legitimate interests: Analytics to improve the app, provided this does not override your rights and freedoms.
- Consent: Push notifications (you can enable or disable these at any time).
6. Who We Share Your Data With
We share your data with the following third-party service providers who help us operate Broaden:
| Provider | Purpose | Data Shared | Location |
|---|
| Supabase | Database & authentication | Account data, reading activity, saved articles | EU/US |
| Anthropic | AI article curation | Topic preferences, anonymised feedback | US |
| Mixpanel | Analytics | Anonymous usage events | US |
| RevenueCat | Subscription management | User ID, subscription status | US |
| Google Play / Apple | App distribution & payments | Purchase data | US |
We do not sell your personal data to anyone. We do not share your data with advertisers for targeting purposes.
7. International Data Transfers
Some of our service providers are based outside the UK. When we transfer your data internationally, we ensure appropriate safeguards are in place, including Standard Contractual Clauses approved by the UK Information Commissioner's Office (ICO).
8. How Long We Keep Your Data
We retain your data for as long as your account is active. If you delete your account:
- Your account data, reading history, and saved articles are deleted within 30 days.
- Anonymised analytics data may be retained for up to 12 months.
- Backup copies may persist for up to 90 days before being permanently deleted.
9. Your Rights
Under UK GDPR, you have the following rights:
- Access: Request a copy of the personal data we hold about you.
- Rectification: Ask us to correct inaccurate data.
- Erasure: Ask us to delete your data ("right to be forgotten").
- Portability: Receive your data in a structured, machine-readable format.
- Restriction: Ask us to limit how we process your data.
- Objection: Object to processing based on legitimate interests.
- Withdraw consent: Where we rely on consent, you can withdraw it at any time.
To exercise any of these rights, contact us at [DGDev1008@gmail.com]. We will respond within 30 days.
10. Children's Privacy
Broaden is not directed at children under the age of 13. We do not knowingly collect personal data from children under 13. If you are a parent or guardian and believe your child has provided us with personal data, please contact us and we will delete it.
11. Data Security
We take reasonable technical and organisational measures to protect your data, including encrypted data transmission (HTTPS/TLS), secure authentication, and access controls on our database. However, no method of electronic storage is 100% secure.
12. Changes to This Policy
We may update this privacy policy from time to time. We will notify you of significant changes through the app or by email. The "last updated" date at the top indicates when it was last revised.
13. Contact and Complaints
If you have any questions or concerns, please contact us at [DGDev1008@gmail.com].
If you are not satisfied with our response, you have the right to lodge a complaint with the UK Information Commissioner's Office (ICO) at ico.org.uk.