Privacy Policy for What Plane?

Effective date: 18 February 2026

Contact: support@ratsystems.uk

Controller: David Wilkinson

What Plane? is available for iOS and Android and helps you view nearby aircraft relative to your device location.

1) Data We Collect

• Precise location (while using the app): latitude and longitude provided by iOS or Android location services.
• Pseudonymous app user ID: a server-generated identifier used to fetch/update nearby-aircraft results.
• App preferences and widget cache (on device): selected units, last known location, widget snapshot data, plane image cache.
• We do not collect your name, email, contacts, photos, messages, or advertising identifiers for this app's core function.

2) How We Use Data

• To register/update your device location and return nearby aircraft data.
• To compute distance/bearing and render map/panel/widget content.
• To cache recent results locally for performance and widget display.

3) Data Sharing

• We share required request data with our backend API at: https://whatplane.org
• Apple or Google services may process data needed for platform functionality on iOS or Android, such as location and map services.
• We use PostHog (posthog.com) for anonymous website analytics — tracking page views, clicks, and session data. PostHog does not sell your data and processes it under our control.
• We do not sell personal data.
• We do not use third-party ad tracking SDKs.

4) Tracking and Advertising

• We do not track you across apps/websites for advertising.
• We do not use Apple's Identifier for Advertisers (IDFA) or Android's Advertising ID for ad targeting.

5) Retention

• On-device cached data remains until app deletion or app data reset.
• Server-side location/account records are retained only as long as needed to provide the service and security, then deleted or de-identified.

6) Your Choices

• You can disable location access at any time in your device settings on iOS or Android.
• You can request deletion of your server-side data by emailing support@ratsystems.uk.
• Include your app user ID (if available) to help locate records.

7) Security

Data is transmitted over HTTPS and protected with reasonable technical and organizational safeguards.

8) Changes

We may update this policy; the latest version is posted at: https://whatplane.org/privacy