Updated: 30 September 2026

GeoQuest for Android uses the software, fonts, icons and images listed below, together with the libraries they depend on. Each one is used under its own license.

Under the Apache License 2.0 (license text)

• Kotlin, kotlinx.coroutines, kotlinx.serialization and JetBrains annotations: github.com/JetBrains/kotlin
• AndroidX (Jetpack) libraries: Core, AppCompat, Activity, Fragment, Lifecycle, ConstraintLayout, RecyclerView, ViewPager2, Emoji2, Startup and others: developer.android.com/jetpack/androidx
• Material Components for Android: github.com/material-components/material-components-android
• Material Symbols icons (Google): github.com/google/material-design-icons
• OkHttp, Okio (Square): square.github.io/okhttp
• Guava ListenableFuture, Error Prone and JSpecify annotations, javax.inject: github.com/google/guava

Under the MIT License (license text)

• AppMetrica SDK (Yandex): github.com/appmetrica/appmetrica-sdk-android
• flag-icons © Panayiotis Lipiridis: github.com/lipis/flag-icons

Under the SIL Open Font License 1.1 (license text)

• Rubik font: github.com/googlefonts/rubik
• Unbounded font: github.com/googlefonts/unbounded

Under Creative Commons licenses and in the public domain

• Photos of capitals from Wikimedia Commons. The photos are scaled down and cropped. The author and license of each are shown under the photo in the game and on the About screen.

Under the licenses of their owners

• Yandex Mobile Ads SDK with the Yandex Varioqub components it includes: Yandex Mobile Ads SDK license agreement
• Google Play services libraries (Basement, Base, Tasks, App Set) and the Google Play Install Referrer library: Android Software Development Kit License Agreement