Aero (“the app”) teaches you to fold paper planes with step-by-step 3D guides. It is built by Adam Mierzwa (“we”, “us”). This policy explains what data the app handles. The short version: Aero has no ads and does not track you across apps or websites. There are no user accounts at all. The app does send anonymous usage statistics, described below, and everything that leaves your device is attributed to a random identifier, not to you.
This data is stored locally using Apple’s standard on-device storage and is removed when you delete the app.
The app downloads its catalog of paper planes from our backend (hosted by Supabase). Downloading the catalog is an ordinary web request and does not include your name or any account data. If you like (upvote) a plane, the app sends the plane’s id together with the random device identifier so each device counts once. That is all a like contains. We cannot tell who you are from it.
To see how the app is actually used, and where people get stuck, Aero sends anonymous usage events to PostHog, an analytics service acting as our processor (their privacy policy). An event records an action inside the app, for example that a folding guide was opened, that a step was completed, or that a plane was finished. Each event carries the random device identifier described above. There is no account to attach it to, and we never send your display name, your skill level, or anything else you typed into the app.
As with any web request, PostHog receives your IP address, and derives an approximate location from it at city level. We use that to see which countries Aero is used in. We do not store your IP address ourselves, and the app does not ask for location access. All of this is processed on PostHog’s servers in the European Union.
Subscriptions and the lifetime unlock are processed by Apple through the App Store; we never see your payment details. To recognize your purchase across launches, the app uses RevenueCat, a purchase-management service, which receives your App Store receipt together with the random device identifier described above, not your name or email. RevenueCat acts as our processor for this purpose (their privacy policy).
Folding reminders are local notifications scheduled on your device. They involve no server and can be turned off in Settings at any time.
Aero contains no advertising SDKs. We do not track you across apps or websites, we do not build profiles of you, and we do not sell data. The usage statistics described above are not linked to an identity, are never shared with data brokers, and are not used for advertising. Because of that, the app does not ask for permission to track.
Aero is fun for all ages, but it is not directed at children under 13 and does not knowingly collect personal data from them.
Almost everything lives on your device: deleting the app removes it. Likes stored on our backend, and the usage statistics held by PostHog, are keyed to the random device identifier and contain no personal data; if you would like either removed anyway, email us with a short description of when you used the app and we will walk you through it. For any question or request about your data, we are happy to help.
If we make material changes, we will update the “Last updated” date above and, where appropriate, show a notice inside the app.
Questions: privacy@mierzwa.net