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Credits

Exigu is built on open-source work. Everything below ships inside the apps or this site, with the licence it is used under. Exigu calls no third-party web API — scanning, scoring and PDF generation all happen on your device, and the only outbound traffic is to Google's ad and billing services.

Services

  • Google AdMob

    App Open ads, until Remove Ads is purchased

    Google APIs Terms

  • Google Play Billing

    In-app purchase — Android

    Apache 2.0

  • Apple StoreKit 2

    In-app purchase — iOS

    Apple Developer Terms

Fonts

  • Inter

    Typeface — app and website

    SIL Open Font License 1.1

Icons

Libraries & frameworks

  • Astro

    Website framework

    MIT

  • Tailwind CSS

    Website styling

    MIT

  • Jetpack Compose · Material 3

    Interface — Android

    Apache 2.0

  • CameraX

    Camera — Android

    Apache 2.0

  • ML Kit Barcode Scanning

    Answer-sheet QR read — Android

    Google APIs Terms

  • ZXing Core

    Answer-sheet QR generation — Android

    Apache 2.0

  • AndroidX DataStore

    Local settings — Android

    Apache 2.0

  • SwiftUI · Vision · Core Image · AVFoundation

    Interface, OMR pipeline and camera — iOS

    Apple Developer Terms

Questions

If you believe something is used or attributed incorrectly here, tell us at exigu.support@juanlobby.com and we'll correct it.