Privacy Policy

Last updated: 5. April 2026

1. Data Controller

Kim Engels
Email: kim.engels@gmail.com

2. Data We Collect

seit. is a privacy-friendly app. We collect as little data as possible:

• Event data (title, date, emoji, category, color theme): Stored locally on your device using SwiftData and optionally synced via iCloud between your devices.
• Photos: Stored locally on your device. They are never transmitted to any server.
• Microsite data: When you publish an event as a website, the title, date, emoji, and category are sent to our Cloudflare Worker and stored in Cloudflare KV. Photos are never transmitted.
• Device ID (hashed): A SHA-256 hash of your device ID is used as an authentication token for microsites. The plain device ID never leaves your device.
• Analytics: We use TelemetryDeck for anonymous, privacy-compliant usage statistics. No personal data is collected. More information: telemetrydeck.com/privacy

3. Data We Do NOT Collect

• No names, email addresses, or contact information
• No location data
• No tracking, no cookies, no fingerprinting
• No sharing with third parties for advertising purposes

4. iCloud Sync

If you have iCloud enabled, Apple syncs your event data between your devices via CloudKit. This synchronization is subject to Apple's Privacy Policy. We have no access to your iCloud data.

5. Microsites

When you publish an event as a microsite:

• The data (title, date, emoji, color theme, category) is stored on Cloudflare Workers KV.
• The microsite is accessible via a random URL. Only people with the link can see the page.
• Microsites are not indexed by search engines (noindex, nofollow).
• You can deactivate a microsite at any time. The data is deleted immediately and permanently.

6. Notifications

Notifications are scheduled locally on your device. We do not use any external push service. Apple does not receive the content of your notifications.

7. In-App Purchases

Purchases are handled via Apple's StoreKit 2. We have no access to your payment information.

8. Data Deletion

You can at any time:

• Delete individual events in the app
• Deactivate microsites (immediate deletion of server data)
• Uninstall the app (deletes all local data)
• Delete iCloud data via iOS Settings

9. Children

seit. is not directed at children under 13. We do not knowingly collect data from children.

10. Changes

We may occasionally update this privacy policy. The current version is always available at seit.app/privacy.

11. Contact

For privacy questions: kim.engels@gmail.com