Last updated: August 3, 2026

## Overview

PreFlight is an offline-first app. Your flight records stay on your device. We have no servers, no accounts, and no analytics. We do not collect or store any personal information.

One feature reaches the internet: when you capture site conditions for a flight, your approximate coordinates are sent to Apple to look up local weather and a place name. That request is handled by Apple and is described in full below.

## Data Stored on Your Device

PreFlight stores the following locally on your device using Apple's on-device storage:

• Pilot information (name, company name, pilot type)
• Drone profiles (name, type, serial number, FAA registration number, photos)
• Flight session logs (dates, times, locations, job names, mission details, checklist results, notes, site photos)
• Site conditions captured for a flight (GPS coordinates, altitude, weather observations, and calculated sun times)
• Checklist templates you create or customize
• Maintenance logs and document expiration dates
• App preferences and settings

This data is never uploaded to any server. It exists solely on your device and in your device backups.

## Location

PreFlight asks for location access for one purpose: recording where a flight took place, and retrieving the conditions there.

• Location access is optional*. If you decline, every other feature continues to work.
• Your position is read when you capture site conditions for a flight. Once you have granted permission, this refreshes automatically when you open the flight setup screen so conditions are ready before you launch.
• Sun times, golden hour, magnetic variation, and density altitude are calculated on your device* from your coordinates. These work with no internet connection.
• Your coordinates are saved to that flight's log, on your device, so the record reflects where you actually flew.