One person, four communities, zero patience for bad tools.

Doseline started because I couldn't find a single app that did what I needed. I was tracking injections in one app, weight in another, bloodwork in a spreadsheet, and timing my doses based on half-life calculators I'd bookmarked from Reddit threads. It worked, barely. But it was fragmented, unreliable, and I knew I wasn't the only one doing it.

I started looking at what was available. Some apps were beautifully designed but only tracked one medication at a time. Others had great PK modeling but were locked to a single platform. Every app I found served one community well and ignored the rest — or served all of them badly.

So I started building. One app that gives every community the same depth. Real pharmacokinetic curves, not just reminders. Multi-medication protocol support, not just single-drug tracking. Bloodwork that correlates with your dosing schedule. And privacy that's architectural, not just a policy page.

I'm a solo developer based in the UK, building Doseline full-time. I'm not a doctor and this isn't a medical device — it's an information tool built by someone who uses these medications and wanted something better than what exists.