Privacy Policy
Last updated: March 2026
1. Data Controller
The controller responsible for data processing on this website and within the CullKit app is:
idyation GmbH
Represented by: Ingo Dyrbusch
Käthe-Kollwitz-Ring 2
40822 Mettmann
Germany
E-Mail: info@cullkit.com
2. This Website
Hosting
This website is hosted by Strato AG, Pascalstraße 10, 10587 Berlin, Germany. When you visit this website, Strato’s servers automatically log standard access data including your IP address, browser type, operating system, referring URL, and the date and time of your visit. This data is processed on the basis of Art. 6 para. 1 lit. f GDPR (legitimate interest in secure and reliable website operation). Log files are retained for a limited period and then deleted.
Cookies
This website uses only technically necessary cookies required for the operation of the WordPress content management system. No tracking cookies, advertising cookies, or third-party analytics are used. No consent banner is required for technically necessary cookies under GDPR.
No Analytics
We do not use Google Analytics, Matomo, or any other analytics service on this website. No data about your browsing behaviour is collected or shared with third parties.
3. The CullKit App
What data does the app access?
CullKit connects directly to your Synology NAS over your local network or via Synology QuickConnect. The app accesses:
- Your NAS login credentials (stored securely in your device’s Keychain — never transmitted to us)
- Photo thumbnails and metadata from your NAS (cached locally on your device)
- Star ratings and XMP sidecar files stored on your NAS
Your photos never leave your network
CullKit does not upload your photos, thumbnails, or metadata to any server operated by idyation GmbH or any third party. All data flows directly between the app on your device and your Synology NAS. We have no access to your photos or your NAS.
Local cache
Thumbnails are cached locally on your device to enable fast browsing and offline access. This data is stored in the app’s sandboxed container and is deleted when you delete the app. You can also clear the cache at any time from the app’s settings.
In-App Purchases
Subscription purchases are handled entirely by Apple via the App Store. We do not receive or store your payment details. Apple’s privacy policy governs the purchase process: apple.com/legal/privacy.
Crash reporting and diagnostics
The app may use Apple’s built-in crash reporting (if you have opted in to share diagnostics with developers on your device). This data is anonymised and processed by Apple. We receive aggregated crash reports through App Store Connect. No personally identifiable information is included.
4. Your Rights
Under the GDPR, you have the right to access, rectify, erase, restrict processing of, and port the personal data we hold about you. You also have the right to object to processing and to lodge a complaint with a supervisory authority (in Germany: the relevant Landesbeauftragte für Datenschutz).
To exercise your rights, contact us at: info@cullkit.com
Since we process minimal personal data and your photos are processed exclusively on your own device and NAS, most requests will be straightforward to fulfil.
5. Changes to this Policy
We may update this policy as the app and website evolve. The current version is always available at this URL. Significant changes will be communicated via the App Store release notes.