Privacy policy

Crosswind: Pilot Logbook (iPhone, iPad and Apple Watch). Effective 25 October 2026.

In short: Crosswind does not collect any data. There is no account and no Crosswind server. Your logbook stays on your devices and in your own private iCloud, which we cannot access. No analytics, no advertising, no tracking, no third-party SDKs.

Your logbook

Flights, aircraft, people, pilot profile (certificates, ratings, medicals), endorsements, signatures, attachments and settings are stored on your device. If iCloud is turned on for Crosswind, Apple syncs them through the app's private CloudKit database in your iCloud account, so your iPhone and iPad stay in step. Only you can read that database; the developer cannot see, export or delete it. Apple's handling of iCloud data is covered by Apple's privacy policy.

Location (auto-log)

Location is used only by the optional flight recorder (Settings › Auto-log), to time Out, Off, On and In, find the departure and arrival airports, count landings and compute night time.
Precise GPS runs only while a flight is being recorded: after you tap Start flight, press a button on your Apple Watch, or, if you turned on Detect flights automatically, after the app notices you at an airport. Detection uses iOS significant-location-change monitoring only; it does not track your movements.
While recording, a Live Activity is shown on the Lock Screen and in the Dynamic Island. It is drawn on your device by iOS and is not sent anywhere (no push server).
The recorded track and the resulting flight stay in your logbook (and your iCloud if sync is on). Location is never sent to the developer or to any third party.
The built-in airport database (72,000+ airports) is inside the app; looking up an airport never uses the network.

Photos and files

When you attach a scan or photo of a paper endorsement, the system photo picker gives Crosswind only the image you choose; the app has no access to the rest of your library. Files you import (CSV, LogTen text, calendar .ics, GPX/KML tracks, backups) are read from the file you pick in the Files app and nothing else.

Signatures

Instructor signatures are drawn on your device and stored with your logbook as an image together with the instructor's name, certificate number and date, plus a fingerprint of the signed text (so a later edit voids the signature). They are synced to your private iCloud like the rest of your logbook and printed in the PDFs you create.

Apple Watch

The Watch app keeps only the current flight's Out/Off/On/In times and sends them directly to your iPhone with Apple's WatchConnectivity. It does not use location and stores nothing else.

Notifications

Currency reminders and "flight ready to review" alerts are local notifications scheduled on your device. Crosswind uses no push notification server. You are asked for permission only when you turn them on.

Backups and exports

Backups are JSON files written to your iCloud Drive (folder FlightLedger) or to this device if iCloud Drive is off. CSV and PDF exports are created on your device and leave it only when you share them.

Face ID

The optional lock uses iOS Face ID / Touch ID / passcode. The app only receives "unlocked" or "not unlocked"; biometric data never reaches Crosswind.

Purchases

Subscriptions and the lifetime purchase are processed by Apple through the App Store. Crosswind receives only Apple's confirmation of your entitlement, never your name or payment details.

What we do not do

No account, sign-in or email collection.
No analytics, crash-reporting, advertising or tracking SDKs; no data broker sharing; no cross-app tracking.
No Crosswind servers. This website only serves static pages.

Children

Crosswind is a tool for pilots and is not directed to children. It collects no personal data from anyone.

Your choices

You can export everything (Settings › Backup & restore, or Reports › CSV), delete any flight, or delete the app. To delete synced data from iCloud, use iOS Settings › your name › iCloud › Manage Storage. Location, notifications and photo access can be changed at any time in iOS Settings.

Changes and contact

If this policy changes, the new version is posted on this page with a new date. Questions: vincent.vibecoding@gmail.com or the support page.