The fundamental architecture difference Cloud-based pain trackers store your health data on remote servers operated by the app developer or a third-party hosting provider. Local pain trackers store everything on your device. This single architectural...
Building privacy first health tools that fail safely when users are already under pressure.
I’m the founder of CrisisCore Systems and the developer behind PainTracker.ca, a privacy-first, offline-first pain journal built for people who’ve been failed by “normal” health apps. I build PWAs that run entirely on your device, use real encryption, and respect trauma and crisis instead of exploiting them. Here I write about Web Crypto, IndexedDB, workers’ comp evidence, and building software that still works when life doesn’t.
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