Free software, built with care
Apps that cost nothing and ask nothing of you. No ads, no subscriptions, no selling your data.
On the House Software is a one-person studio in Williamson County, Texas, run by Jonathan Kattner, an AI UX designer and systems architect. Everything made here is free and will stay free. That is the whole point of the name.
A private symptom journal for people living with chronic illness. Log how you feel in your own words, pair it with readings from a wearable band or blood pressure cuff, and turn it into a clear visit summary for your doctor. Your journal stays on your phone.
Learn about Evee