I make iOS apps for people who want less noise.

No accounts, no tracking, no data collection.

BloodChart app icon
BloodChart
Blood Test Tracker

Every lab value over time, against its reference interval.

Coming soonLearn more
One place for all of it: every lab result in one timeline.

How I build

Privacy by default

Your data stays on your devices and in your own iCloud.

Honest pricing

No hidden fees, ever.

No account required

iCloud handles sync.

Small and focused

One thing, done well.

Questions, bugs, ideas?

support@edgarpielb.com Edgar Pielbusch · © 2026