Sylly - Privacy Policy

Last updated: September 17, 2026

Sylly ("the App") is an iOS app that helps students scan college syllabi, extract assignment due dates, and add them to their calendar. Your privacy matters to us. This policy explains what data the App accesses and how it is used.

1. Data We Access

The App may request access to the following on your device:

• Camera — To scan syllabus documents using your device's camera.
• Photo Library — To select syllabus images from your photo library.
• Calendar — To export assignment due dates to your Apple Calendar.
• Files — To import syllabus PDFs from your device.
• Notifications — To remind you about upcoming assignment due dates. Reminders are scheduled on your device and are not sent from a server.

All permissions are optional. The App will ask for your consent before accessing any of these.

2. Data Sent to Third Parties

When you scan a syllabus, the extracted text is sent to the Anthropic Claude API for processing. This is used to identify course names, assignment titles, due dates, and course details such as the late work policy, office hours, and grading breakdown. No images are sent — only the extracted text.

The text reaches Anthropic by way of a server we operate on Cloudflare Workers. That server passes the text to Anthropic and returns the result to the App. It does not store your syllabus text.

Each scan also sends a device identifier provided by Apple (the "vendor identifier"), which lets our server limit how many scans a single device can make in a minute. It is not linked to you and is not kept beyond the minute used to count recent scans. It resets if you delete the App.

Because the whole syllabus text is sent, it may include information about your instructor, such as their name, email address, or office location. Sylly does not ask for this or single it out — it is simply part of the document you chose to scan.

Anthropic's privacy policy can be found at anthropic.com/privacy. Cloudflare's can be found at cloudflare.com/privacypolicy.

3. Data Stored on Your Device

All course and assignment data is stored locally on your device using Apple's SwiftData framework. This data never leaves your device unless you choose to export assignments to your calendar.

4. Data We Do Not Collect

• We do not collect personal information (name, email, location).
• We do not use analytics or tracking tools.
• We do not store your syllabus text or images on any server.
• We do not sell or share any data with third parties.

5. Children's Privacy

The App does not knowingly collect personal information from children under 13. Since no personal data is collected from any user, the App is safe for use by students of all ages.

6. Changes to This Policy

We may update this policy from time to time. Any changes will be reflected on this page with an updated date.

7. Contact

If you have questions about this privacy policy, contact us at sylly.feedback@gmail.com.