Credits & Licenses

Ambient Nature Music | Nature
By: Alex-Productions (onsound.eu)
Promoted by: Chosic
License: Creative Commons CC BY 3.0

Modification Notice: The original audio file was renamed, the format was changed, and the track length was cropped to fit gameplay.

UI & Game Sound Effects
By: Various audio packs by Kenney
License: CC0 1.0 Universal (Public Domain)

Modification Notice: The original audio files were selected from various packs, renamed, and formats were changed to fit gameplay requirements.

Space Grotesk & Nunito
By: Florian Karsten and Vernon Adams, Cyreal, Jacques Le Bailly
License: SIL Open Font License 1.1

Used throughout the app's interface and on this website.

Abril Fatface, Bungee Shade, Finger Paint, Monoton and Press Start 2P
By: TypeTogether, David Jonathan Ross, Gaurav Nagar / Nikhil Ranganathan, Vernon Adams, and CodeMan38
License: SIL Open Font License 1.1

Stroop mode rotates through these five display faces so the word never looks the same twice — the changing shapes are part of the difficulty.

All typefaces above are distributed via Google Fonts. The font files are bundled with the app, so gameplay does not depend on a network request to load them.

Flutter and the Dart SDK
By: Google and the Flutter contributors
License: BSD 3-Clause

The framework ReflexLab is written in.

FlutterFire — Firebase Analytics, Crashlytics, Authentication, Cloud Firestore and Remote Config plugins
By: Google / Invertase
License: BSD 3-Clause

Powers global leaderboards, the daily challenge, crash reporting and anonymous analytics. See the Privacy Policy for what each one handles.

Google Mobile Ads and google_fonts for Flutter
By: Google
License: Apache License 2.0

Ads keep ReflexLab free. Nothing in the app is behind a paywall.

A full dependency listing with license texts is available on request — email [email protected] and we'll send it over.