Rash: Start with the questions,
not the camera.
A short signs-and-symptoms checklist — the kind a triage nurse asks — gives you a care recommendation and a timeframe. It is free, unlimited, and works with no signal. A photo is optional, and a photo can only ever raise the urgency.
Have a clinician look at this today.
Your answers include something that is usually looked at the same day — a same-day appointment or urgent care.
Why you're seeing this
- You reported a fever alongside the skin problem.
- You reported severe pain.
These come from the checklist you answered, not from a photograph.
When to seek care
Have a clinician look at this today. Today, or within 24 hours.An illustration of the result screen. The headline, the timeframe and every reason under it come from the checklist you answered.
This app is not on the App Store yet. It has not been released, and this page is not an offer to sell. We will not submit it for review until an independent evaluation of the photo step has been completed. There is no download link on this page, on purpose.
What it does
Three steps, in this order. The camera is last, and it is optional.
You answer the checklist
Twenty-one questions about signs and symptoms. Is there a fever. Does it fade when you press a clear glass on it. Is it spreading by the hour. Are there sores in the mouth or eyes. Was a new medicine started recently. Was there a tick.
You get a care level and a timeframe
Three possible answers: have a clinician look at this, have a clinician look at this today, or get emergency care now. Plus the plain-language reason, traceable to the questions you answered.
A photo is optional
If you add one, you get a description of what is visible, a list of conditions that can look like this in no particular order, and the questions your clinician is likely to ask.
The checklist runs on your phone. It uses no model, no network and no photo — so the emergency checks work in a basement, on a plane, and on a dead cell connection.
A photo can only raise the urgency.
It can never lower it.
There is no code path in this app that takes a care level set by your answers and moves it down. If the photo step fails, times out, or comes back incomplete, we discard it and the checklist recommendation stands unchanged.
What it never does
This list is enforced in the build, not in a style guide. Every line below is checked by a test that fails the release.
- It never tells you what you have. There is no verdict and no single answer.
- It never gives a risk score, a rating, a percentage, or a confidence figure.
- It never tells you a rash is nothing to worry about. There is no all-clear in this app, at any level. Every result ends with seeing a clinician.
- It never names a medicine or a dose.
- It never hides the urgency answer, the red-flag warnings, or the emergency screen behind a payment.
- It has no ads, no ad tracking, no advertising ID, no location, and no account.
How this works, and what it is not
This app asks you a fixed set of questions about your symptoms — fever, whether the rash fades when pressed, how fast it is spreading, pain, mouth or eye involvement, new medications, tick exposure and others — and a published rule, which you can read in full in Settings, turns your answers into a suggested level of care and a timeframe. The checks that can send you to an emergency room run entirely from that checklist and do not involve any AI model at all. If you add a photo, a general-purpose image model (Google Gemini 2.5 Flash, run via Replicate) describes what is visible, lists conditions that can look similar, and suggests questions your clinician is likely to ask. That model is a general-purpose model. It has not been evaluated for use in skin conditions, it has not been reviewed or cleared by the FDA, and no accuracy figure is claimed for it anywhere in this app. Published testing of models of this class, on clinically curated photographs taken under controlled conditions, shows they are frequently wrong — and measurably less reliable on darker skin. A photo taken on a phone under kitchen light is a harder case than any of those tests. Because of that, the photo can only ever make the suggested care more urgent. There is no result the photo can produce that makes it less urgent. If the analysis comes back incomplete, we discard it entirely rather than show you part of it, and the checklist recommendation stands unchanged. This is not a diagnosis. It is not a substitute for a clinician. Always check with a doctor before making a medical decision. Photos are analysed and then deleted; they are never stored on our servers.
It has not been clinically validated and no accuracy figure is claimed for it.
Your photos
The photo step is opt-in, single-use, and off the record by default.
Sent only if you say so
A photo is sent only after you agree on a separate consent screen, shown only after you already have your answer from the checklist.
Location stripped on the phone
Location data is removed from the photo on your phone, before anything is uploaded.
Deleted when the analysis ends
The photo is deleted from our servers the moment the analysis finishes. It is never public, never indexed, and no link to it is ever given to anyone.
- Keeping a photo on your own phone, so you can compare later, is a separate setting that is off by default.
- You can delete everything, at any time, in one tap in Settings.
Two separate policies govern this, and Washington law requires that they not be merged: the Privacy Policy and the Consumer Health Data Privacy Policy.
The answer is free. The paperwork is what costs money.
The urgency recommendation, the timeframe, the red-flag warnings and the emergency screen are never behind a payment, and never will be.
Free
$0
No account, and no sign-in.
- The whole checklist
- The care level and the timeframe
- Every red-flag warning
- The emergency screen
- The photo step, subject only to a fair-use limit of 5 analyses a day
Clinician Handoff Pack
$4.99 once
One concern's worth of exports.
- A one-page summary you can save or print
- Your answers, your questions and your notes
- Something to hand over at the appointment
Premium
$7.99 / month
Or $59.99 a year, with a 7-day free trial on the annual plan.
- Handoff exports, whenever you need one
- Change-tracking over time
- A profile for each person in the household
- Appointment reminders
- Full history on older records
The fair-use limit is a rate limit, not a paywall, and subscribing does not raise it — raising it for payers would mean selling the answer. What Premium sells is preparation and handoff. Nothing else.
Who it is for
Adults in the United States. The App Store age rating is the highest tier Apple offers, because every result discusses medical conditions and because the app receives photographs of bodies. Separately, the Terms of Use require you to be 18 or older to use the app, and if the photo is of a child you must be that child's parent or guardian.
Every result ends with seeing a clinician.
That is the design, not a shortcoming. And there will be no download button on this page until the photo step has been evaluated on real consumer phone photographs, across skin tones, and has passed.