---
title: "Discussion on \"Lessons Learned from PainTracker\" | Hashnode"
description: "Discussion on \"Lessons Learned from PainTracker\". A practical checklist distilled from PainTracker for building reliable, privacy-first, accessibility-focused health apps."
url: "https://hashnode.com/posts/part-12-lessons-learned-from-paintracker/6973b72bde9b7a5803bb95af"
---

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# [Lessons Learned from PainTracker](https://blog.paintracker.ca/part-12-lessons-learned-from-paintracker?utm_source=hashnode&utm_medium=feed)

A practical checklist distilled from PainTracker for building reliable, privacy-first, accessibility-focused health apps.

Jan 23 · 2 min read · blog.paintracker.ca  
Read the article

-   [#paintracker](https://hashnode.com/tag/paintracker)
-   [#health-apps](https://hashnode.com/tag/health-apps)
-   [#privacy-first](https://hashnode.com/tag/privacy-first)
-   [#local-first](https://hashnode.com/tag/local-first)
-   [#accessibility](https://hashnode.com/tag/accessibility)
-   [#offline-first](https://hashnode.com/tag/offline-first)
-   [#incident-response](https://hashnode.com/tag/incident-response)
-   [#observability](https://hashnode.com/tag/observability)

## Written by

[CrisisCore-Systems](https://hashnode.com/@CrisisCoreSystems)

@CrisisCoreSystems · Vernon, BC, Canada

  
[View profile](https://hashnode.com/@CrisisCoreSystems)

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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