Licences

QuickCalc is built on free software. Here is what is used and under which licence. Last updated: 12 October 2026.

The app

Library	Purpose	Licence
Kotlin (standard library)	programming language	Apache License 2.0
AndroidX / Jetpack Compose	user interface	Apache License 2.0
Material 3 (Compose)	design system	Apache License 2.0
AndroidX Room	local database for the history	Apache License 2.0
AndroidX DataStore	storing the settings	Apache License 2.0
AndroidX Navigation, Lifecycle, Activity	navigation and lifecycle	Apache License 2.0
Roboto	Android system typeface	Apache License 2.0

Used for development and automated tests only and not part of the shipped package: JUnit 5 (Eclipse Public License 2.0), MockK and kotlinx-coroutines-test (Apache License 2.0), AndroidX Test / Espresso (Apache License 2.0).

This website

Vite

building the static pages (build time only)

MIT License

At runtime the website loads nothing extra: no web fonts, no third-party scripts or styles, no analytics. The typeface is the device's system font.

Artwork

App icon, wordmark, store graphics and the images on this page are original work made for QuickCalc. No third-party graphics, stock material or third-party logos are used.