Privacy Policy

Nibbler (“we”, “us”, “our”) is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and share information when you use our mobile applications and website (collectively, the “Service”).

Information We Collect

We collect only what we need to provide the Service:

• Account information: email address, name, and optional profile photo when you sign up.
• Learning data: your quiz answers, lesson completions, streak counts, and in-app interactions. This data powers our personalization engine.
• Uploaded content: PDFs, articles, and text you upload are stored securely to generate your personalized lessons. We do not read or use your content for any other purpose.
• Device information: device type, operating system, and app version for troubleshooting and analytics.
• Usage analytics: aggregated, anonymized data about how features are used. We never track individual browsing history outside of Nibbler.

How We Use Your Information

• To generate and personalize your daily lessons
• To track your learning progress and streaks
• To improve the app and fix bugs
• To send you lesson reminders (which you can disable at any time)
• To provide customer support

What We Never Do

• We never sell your data to third parties — ever.
• We never use your uploaded content to train AI models for other users.
• We never share your reading habits or preferences with advertisers.
• We never show you ads inside the app.

Data Storage & Security

All data is stored on servers within the European Union and encrypted at rest using AES-256. Data in transit is protected by TLS 1.3. Your uploaded content is stored in isolated, access-controlled buckets — not accessible to other users or Nibbler employees except for the purpose of generating your lessons.

Your Rights

You have the right to:

• Access all data we hold about you (export available in Settings)
• Correct inaccurate data
• Delete your account and all associated data (Settings → Delete Account)
• Data portability — download your learning history in JSON format
• Withdraw consent for optional processing at any time

For EU/UK users, these rights are guaranteed under GDPR. For California users, they are guaranteed under CCPA.

Cookies

Our website uses minimal cookies — only those strictly necessary for the site to function and for analytics (via a privacy-first analytics tool that does not track individuals). We do not use advertising cookies or cross-site tracking.

Children's Privacy

Nibbler is not directed at children under 13. We do not knowingly collect data from children. If you believe a child has created an account, please contact us at privacy@getnibbler.com and we will delete the account immediately.

Changes to This Policy

We will notify you of material changes via email and in-app notification at least 30 days before they take effect. Continuing to use Nibbler after that date constitutes acceptance of the updated policy.

Contact Us

Questions or concerns? Email us at privacy@getnibbler.com. We aim to respond within 48 hours.