For privacy reasons, all your data and flight configurations remain entirely local to your device.
Save: Click the "Save" button in the top navigation to download a backup `.json` file containing your complete flight library, exchange rates, and trip baseline to your computer.
Reopen: Whenever you return or want to load a previous session, click "Reopen", select your saved backup `.json` file, and your workspace will instantly restore all your flight options and comparisons.
Note: When added to your iOS device home screen, data is stored on-device automatically without any manual step, but we still recommend saving a backup file just in case.