Articles

Guides & explainers

Plain-English answers to the questions behind FODMAP, IBS, perimenopause, menopause, and health data privacy.

Privacy·5 min read·April 10, 2026

What is a health data broker?

Health data brokers buy, compile, and sell personal health information — often sourced from apps you use every day. What they are, how they get your data, and what the consequences are.

Privacy·5 min read·April 11, 2026

What does 'your data stays on your device' actually mean?

It's used as a selling point by privacy-focused apps — but what does it mean technically, what guarantees does it actually provide, and what are its limits?

Privacy·5 min read·April 1, 2026

Why your health tracking app shouldn't need your email address

Most health apps ask for an account before you can log a single symptom. Here's why that's a problem — and what private-by-design tracking looks like.

Privacy·5 min read·April 9, 2026

Local-first health data: what it means and why it matters

Your health data is among the most sensitive information you generate. Local-first apps store everything on your device — here's how that works and what you give up.