The airplane-mode test: why your health records app should work offline
Here's a simple way to find out where a health app really keeps your data: turn off the internet. OwnVital passes, on purpose. Here's the architecture decision behind it.
There’s a one-second audit you can run on any app that holds your health information: turn on airplane mode and open it.
If the app shows a spinner, an error, or a login wall, your records live on a company’s servers, and the app is a window to them. If it just… works, your records live on your device. No privacy policy required; the behavior tells you the truth.
OwnVital passes this test, and not by accident. It was the first architectural decision we made.
What “on your device” actually means
When you scan a lab report or import a discharge summary into OwnVital:
- The document is stored on your phone, encrypted at rest.
- The timeline, the search index, your medication and allergy lists: all built and kept on your phone.
- There is no OwnVital account, because an account implies a server-side “you,” and we didn’t build one. Your vault opens with Face ID, not a password we hold.
Put your phone in airplane mode and OwnVital opens, your timeline loads, and search works, because none of that ever depended on a network.
Why we built it this way
Health data is the most personal data there is, and the industry’s default architecture (upload everything, promise to be careful) has a track record. Breaches at health-tech companies aren’t hypothetical; they’re a news category. The only data that can’t leak from a server is data that was never on the server.
There’s a quieter reason too: your records shouldn’t depend on us. Companies pivot, get acquired, shut down. If OwnVital the company disappeared tomorrow, OwnVital the app on your phone would keep opening, with everything in it.
And one honest, practical reason: hospital basements, rural clinics, international travel. The places you most need your medical history are reliably the places with one bar of signal.
The honest fine print
We’re precise with this claim, so here’s exactly where the edges are: your documents stay on your phone. Some features do use the network when you invoke them (that’s how modern AI-assisted reading of a messy fax works), and we engineer those so the vault itself never syncs anywhere: no cloud copy of your records, no account linking them to you. And if your email is on our waitlist, that list is exactly that: an email list, stored separately from anything health-related, because there’s nothing health-related for it to connect to.
When the app launches, you shouldn’t have to take our word for any of this. Airplane mode is free. Try it on us first, then try it on every other health app you use.
OwnVital launches on iPhone August 1, 2026. Join the waitlist and run the test yourself on day one.