Privacy Policy
Last updated: November 2026
Pilleken stores all data exclusively on your device. No personal data is transmitted to servers, collected or shared with third parties.
1. Controller
Christian Krause
Email: developer@ck1969.de
Full contact details: Legal Notice
2. Overview of data processing
Pilleken is an iOS app for managing medication plans, intake reminders and adherence statistics. The app only processes data that you enter yourself:
| Data | Storage location | Purpose |
|---|---|---|
| Medication names, dosage, unit | Device (app sandbox, JSON) | Medication management |
| Active ingredients, reason for intake | Device (app sandbox, JSON) | Medication plan & BMP export |
| Intake schedules (times, weekdays, cycles) | Device (app sandbox, JSON) | Planning and reminders |
| Intake log (timestamps, status) | Device (app sandbox, JSON) | History and statistics |
| Stock and warning thresholds | Device (app sandbox, JSON) | Stock management |
| Medication photos | Device (Documents folder) | Visual representation |
| Notification settings | Device (UserDefaults) | Push notifications |
| Patient name, date of birth, doctor's name (BMP) | Device (app sandbox, JSON) | German Federal Medication Plan |
3. Push notifications
Pilleken sends two kinds of local push notifications:
- Intake reminders: notify you at the configured intake times. Up to 5 follow-up reminders at an adjustable interval are possible.
- Low-stock warnings: inform you every day at the configured time if a medication's stock has fallen below the warning threshold.
All notifications are scheduled and delivered locally on your device – without any server connection. You can turn off notifications at any time in the app or in the iOS settings under Pilleken → Notifications.
4. Widgets
Pilleken offers Home Screen widgets (intake widget and stock widget). To display data in the widget, it is shared between the app and the widget extension via an App Group (a shared storage area on the device). This storage is located exclusively on your device and is only accessible to Pilleken.
5. German Federal Medication Plan (BMP) with QR code
Pilleken can create a BMP as a PDF with an embedded QR code. This QR code contains your medication data in a standardized format. The QR code is generated exclusively locally on your device; nothing is uploaded to any server. You can forward the generated PDFs to doctors, pharmacies or yourself using the standard iOS share function.
6. iCloud sync and backup (Premium)
Premium users can enable the optional iCloud sync. The following applies:
- Sync takes place exclusively via your personal iCloud account using Apple CloudKit.
- Data is synchronized between your own devices (iPhone, iPad).
- Pilleken has no access to your iCloud data – Apple manages the storage.
- Sync is subject to Apple's privacy policy.
- You can turn off iCloud sync at any time in the iOS settings under Apple ID → iCloud → Pilleken.
7. Network access
Pilleken does not access the network on its own. The app works completely offline. The only exception is the optional iCloud sync (Premium), which runs on Apple's infrastructure. Pilleken itself does not operate any server and does not receive any user data.
8. In-app purchases (StoreKit)
Premium subscriptions are processed via Apple's StoreKit 2. Pilleken itself does not process any payment data. The entire purchase and billing process is handled by Apple. Purchase validation takes place locally on the device; there is no communication with Pilleken servers.
9. No tracking or analytics services
Pilleken does not use:
- Analytics or tracking tools (no Google Analytics, Firebase, Amplitude or similar)
- Ad networks or advertising libraries
- Third-party crash reporting services
- Cookies or fingerprinting technologies
- Third-party SDKs that transmit data externally
10. Sharing data with third parties
No personal data is shared with third parties. Pilleken does not sell, rent or share any user data.
11. Data storage and deletion
All data is stored locally on your device. You can delete it completely at any time:
- A single medication: swipe left in the medication list → Delete. This also deletes all associated intake logs.
- All data: Settings → Delete All Data
- By uninstalling: when you delete the app, all stored data is removed automatically. iCloud data (Premium) must be deleted separately in the iCloud settings.
12. Your rights (GDPR)
Since no personal data is transmitted to me, I do not hold any of your data. All data resides exclusively on your device and is entirely under your control. You have the right to access, rectification and erasure at any time – since you yourself are the only place your data is stored, you can exercise these rights directly in the app. If you still have questions, feel free to contact me.
13. Children
Pilleken is not specifically directed at children under the age of 17. The app does not knowingly collect any data from children.
14. Changes to this privacy policy
Any material changes will be published on this page. You can find the date of the last update at the top of this document.
15. Contact
If you have any questions about privacy, you can reach me at:
Email: developer@ck1969.de
This is a translation provided for convenience. In case of any discrepancies, the German version shall prevail.