
Austin Witherow
Built the site
Austin is a software developer. He took what Mason described and turned it into the app.
Links: GitHub · X · LinkedIn · developjoy.co
Also built: pedscalc.com · elevationbaking.com · vibehowto.com
Mason Calvert and Austin Witherow met while Austin’s dad was in the hospital.
Austin wanted to show Mason how quickly an idea can become a working web app.

Built the site
Austin is a software developer. He took what Mason described and turned it into the app.
Links: GitHub · X · LinkedIn · developjoy.co
Also built: pedscalc.com · elevationbaking.com · vibehowto.com
Subject-matter expert and PM
Mason is Pedplot’s subject-matter expert and PM. He tells Austin what the tool needs to show.
Links: GitHub
Pedplot is an educational half-life model. It estimates how much of a compound is left over time from its half-life, time to peak, and ester weight.
Pedplot sells nothing and does not give medical advice. It is not a substitute for bloodwork.
Half-lives and times to peak come from FDA labels and published papers where one exists; where none does, the number is marked as a community estimate. Ester shares are molecular-weight math from PubChem. How the model works.
We check the cited label or paper, update the number and the date on the page, and note the change on the methodology page.
Found a wrong number? Email austin@buildleansaas.com with the source, or see Contact.