Steady: Stress & HRV Tracker
Licences
Open-source software
Steady is built with the open-source packages below, and we are grateful to the people who make them. Each is used under the licence named beside it. Each project’s own licence file, at the link, gives its full terms and copyright notices.
Some of these packages include native libraries of their own, among them Skia and MMKV (both under the BSD 3-Clause License) and SQLite (public domain).
- @bacons/apple-targetsMIT
- @date-fns/tzMIT
- @expo-google-fonts/source-serif-4MIT
- @gorhom/bottom-sheetMIT
- @kingstinct/react-native-healthkitMIT
- @shopify/react-native-skiaMIT
- date-fnsMIT
- drizzle-ormApache-2.0
- Expo SDK, @expo/ui and expo-* modulesMIT
- posthog-react-nativeMIT
- reactMIT
- react-nativeMIT
- react-native-fast-confettiMIT
- react-native-gesture-handlerMIT
- react-native-keyboard-controllerMIT
- react-native-mmkvMIT
- react-native-nitro-modulesMIT
- react-native-purchases and react-native-purchases-uiMIT
- react-native-reanimated and react-native-workletsMIT
- react-native-safe-area-contextMIT
- react-native-screensMIT
- react-native-svgMIT
- victory-nativeMIT
- zustandMIT
Licence texts: MIT License · Apache License 2.0
Fonts
Source Serif 4, by Adobe, is used under the SIL Open Font License 1.1.
Licensed content
Stress question adapted from: Elo A-L, Leppänen A, Jahkola A. Validity of a single-item measure of stress symptoms. Scand J Work Environ Health. 2003;29(6):444–451. https://doi.org/10.5271/sjweh.752. Licensed under CC BY 4.0. The licensor provides the work as-is, without warranties. Changes: response labels shown as buttons; a shortened prompt is used after the first showing; no other changes to the wording.
The five response labels follow the Finnish Institute of Occupational Health’s published English rendering of the same scale (Salminen et al. 2014, CC BY 2.0).