v1.2.0Bluemoon
Track your menstrual cycle simply and securely with Bluemoon, the open-source period tracker built to protect your privacy.
Free & open-source · mobile health
Health apps, for everyone.
We are a non-profit association of volunteers who develop health apps. For the public good, free forever, for everyone.
Why we exist
Your health is not a business model. Health apps should be built for people not for profit. Free forever, privacy-first, and open to everyone.
The Open Health Collective is a non-profit association established under Swiss law. We bring together developers, healthcare professionals, and patients to create better digital health solutions for everyone. Our mission is to provide mobile health apps to the public, free of charge, open source, and accessible to all.
1
app
7
contributors
100%
open source
FREE
to use
The catalogue
All repositoriesApps built to be trusted.
Every project is available free of charge. It is developed and maintained by volunteers.
v1.2.0What we hold to
Four commitments, in writing.
These aren't marketing. They're the rules the association is bound by, and you can hold us to every one.
/cost
Free, always
No paywalls, no subscriptions, no premium tier for basic care. If it costs money to use, it isn't ours.
/code
Open by default
Every line is public and auditable. You can read exactly what an app does before you trust it with your health.
/data
Yours to keep
Data lives on your device first. Export it, move it, or delete it. No account to close, nothing held hostage.
/governance
Run in the open
Roadmaps, decisions, and finances are published. The association is a non-profit accountable to its members.
Get involved
A collective needs more than code.
/devDevelopmentBuild open-source health apps with us in Kotlin or Swift./carePatients & Healthcare ProfessionalsYour experience matters: Help us develop health apps that genuinely support people in everyday life./langTranslatorsTranslate our apps into more languages and dialects./designDesignersHelp us design health apps that are clear, accessible, and easy to use.