Open Source Licenses

The software and data Passportkit is built on.

Last updated 2026-10-02

Flutter and Dart

The framework and language the app is written in.

forui

MIT License.

The component library behind the app's tiles, cards, sheets and buttons.

supabase_flutter

MIT License.

The client for the database, authentication and row-level security.

flutter_local_notifications

BSD 3-Clause License.

Schedules the expiry reminders on the device.

flutter_svg

MIT License.

Renders the wordmark and the flags.

shared_preferences

BSD 3-Clause License.

Holds the offline cache and your preferences.

purchases_flutter (RevenueCat)

MIT License.

Subscription state across the App Store and Google Play.

local_auth

BSD 3-Clause License.

The biometric lock on the app.

flutter_dotenv

MIT License.

Loads configuration at startup.

Airline names and logos

Airline names, marks and logos are the trademarks of their respective owners. They are shown here only to identify a flight you have recorded yourself. Passportkit is not affiliated with, endorsed by, or sponsored by any airline, and no ownership of these marks is claimed.

If you own one of these marks and would like it removed, write to support@passportkit.com and it will be taken out of the next release.

Airport and airline data

The airport and airline reference lists are derived from OpenFlights (openflights.org), made available under the Open Database License (ODbL) v1.0. The data is used as a lookup so you can pick an airport or an airline rather than type one; any database rights in the collection remain with the original publishers.

The list is a convenience and not a source of truth. It can be out of date — some carriers in it have ceased trading — and nothing in the app depends on it being correct.

Full texts

The complete licence text for every dependency is available at passportkit.com/licenses, and from each project's own repository.

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