Pacecraft is free.
Nobody is charged to use Pacecraft. There’s no subscription, no trial that runs out, no version with the useful parts held back. That isn’t an introductory offer and it isn’t a strategy that ends once there are enough users.
It’s the whole point, and it’s the thing this page is asking you to help protect.
Who made this
I’m Diana Dussan. I built Pacecraft on my own, even though I've never built an app or anything like it before.
Two weeks after a stomach bug, my body stopped working the way it used to — multiple organs and my entire autonomic nervous system. POTS, vasovagal syncope, and seizures started like a storm — the first seizure on August 3rd, 2025, which is the date I now use to divide things into before and after. I’m a single mother of three. I became, more or less overnight, a person who could not count on standing up.
The rehabilitation protocols that treat this exist, and they’re good. Finding them wasn’t the problem. Following one was. They run for months, every week is different from the last, and keeping track of where you are is a job — a job you’re expected to do while dizzy, exhausted, and thinking through fog. By then I’d developed post-exertional malaise as well, which means the price of getting it wrong doesn’t arrive until a day or two later, long after the moment you could have chosen differently.
I didn’t need a better protocol. The protocol was fine. I needed something to carry it for me, and nothing did.
So I built it. A year to the day after that first seizure, Pacecraft came to fruition, only 48 hours after I came up with the idea.
There’s no company behind this in the way that phrase usually implies. No team, no investors, no growth targets. One person, two published rehabilitation protocols, and the conviction that following them shouldn’t require a printout, a stopwatch, and mental energy nobody in this position has to spare.
Why it’s free
Most of the people this is built for are ill enough that work is difficult or impossible. Many have spent years and a great deal of money reaching a diagnosis, and were told several wrong things along the way at full price.
I know what that costs, because I paid it.
Charging that group for a rehabilitation program felt wrong the first time I considered it, and it kept feeling wrong every time I came back to it. So there’s no paywall, no in-app purchase, and no plan to add either.
Cover yours, if you can
Free to use doesn’t mean free to run.
Pacecraft costs money to keep going, and right now that money is mine. Contributions from people who can spare something are what keep it free for everyone who can’t.
That’s the trade, and it’s worth being precise about it. You’re not buying access — access isn’t for sale here, and nothing you give unlocks anything for anyone. What a contribution covers is the cost that would otherwise have to become a price. It’s the difference between an app that’s free because someone is absorbing the cost, and an app that used to be free.
What it actually pays for:
Hosting and app infrastructure
The guided session audio
Apple and Google developer accounts, billed annually whether anyone contributes or not
Attorney review of the terms and privacy documents, which a medical tool needs and which isn’t cheap
Nothing here funds a salary. If that ever changes, this page will say so.
And if you can’t
Then don’t, and please don’t give it another thought.
You will never see this asked twice. It isn’t in the app, it won’t appear after a session, and there’s no version of Pacecraft that works better for people who gave. The app is identical either way — a rehabilitation program that treats people differently based on what they can pay is exactly the thing this was built to avoid.
If you’d like to help and money isn’t it: tell someone who might need this, or tell a physical therapist it exists.
Contributions
Stripe contributions opening soon
One-time. Any amount. Pacecraft is an LLC rather than a registered charity, so contributions aren’t tax-deductible — they’re just support.