How Your Data Stays Private — Doseline

Local-First Means Local

Your medication doses, schedules, bloodwork results, and health data are stored in a SQLite database on your device. Not on our servers. Not in a cloud database. Not in a “secure” third-party data warehouse. On your phone, in your pocket.

This isn’t a policy choice — it’s an architectural one. The app is built from the ground up to work entirely offline. Your data doesn’t leave your device because there’s nowhere for it to go.

No Account Required

The core app works with zero server dependency. You can:

Track every medication and dose
View PK charts and level estimates
Set reminders and manage injection site rotation
Use every calculator and tool
Log bloodwork, side effects, and body measurements
Take progress photos

All of that without ever creating an account, entering an email address, or connecting to the internet. Download it, use it, done.

What’s Optional

Cloud sync is a planned feature for Doseline Pro — and it will be strictly opt-in. Its purpose is multi-device convenience (phone + tablet, or migrating to a new device), not data collection.

When sync ships, your data will be encrypted in transit and at rest. You’ll have full control over what syncs and what stays local. And you can delete your synced data at any time with a single action.

What We Never Do

Never sell health data. Not to advertisers, not to researchers, not to insurance companies, not to anyone. There is no business model here that involves your data.
Never share data with advertisers. The app has no ads. There is no ad SDK. No tracking pixels. No audience segments.
Never require an account for core features. Accounts exist for optional Pro features (sync, AI insights). Everything else works without one.
Never store your doses, bloodwork, or health records on our servers — unless you explicitly opt into cloud sync. And even then, you control what’s synced.

What “We Respect Your Privacy” Usually Means

Most health apps say they respect your privacy. They write long privacy policies explaining how they might share your data with “trusted partners” for “service improvement.” They store everything server-side and promise they’ll be responsible with it.

Local-first is architecturally different. Your data physically cannot be accessed by us because it doesn’t exist on our infrastructure. We can’t be hacked for your health records because we don’t have them. We can’t be compelled to hand them over because they’re not in our possession.

This matters especially for the communities Doseline serves. Whether you’re tracking HRT, testosterone, GLP-1 medications, or research peptides — your health data is yours. Full stop.

The Website

This website uses Plausible Analytics — a privacy-first analytics service that uses no cookies, collects no personal data, and is fully GDPR compliant without a consent banner. No Google Analytics. No tracking pixels. No fingerprinting.

You can verify this yourself: open your browser’s developer tools, check the network tab, and look at what’s loaded. You won’t find third-party trackers because there aren’t any.

Questions?

If you have questions about how Doseline handles your data, we’d rather over-explain than under-explain. Reach out and ask.