The pattern is in your log. The log never leaves the phone.
RosaCue is a rosacea diary. You log a day in under a minute. After 14 days it shows which of your own variables lined up with worse skin the next day — on the device, with the counter-evidence attached.
No account. No cloud. No product recommendations.
01 Log a day
02 After 14 days
Interface reconstructed. Not a photograph of a device.
The five levels you log against, from calm to severe.
Three steps. The arithmetic stays on the phone.
Log your day
Severity on a five-level scale, plus symptoms, suspected triggers, sleep, exercise and products. Under a minute. Calm days count.
After 14 days, patterns appear
The app compares the days after each logged trigger against your other days. On the device. Using your data only. Nothing is shown until there are enough observations.
Read it, including the misses
Every finding shows how often it held, how often it did not, and the sample size. Optionally, restated in two or three calm sentences. That optional sentence is the only thing that can leave the phone, and it sends numbers, not logs.
Findings arrive with the times they failed.
Counter-evidence is always shown
If a pattern held on 5 of 9 occasions, the card says so. The 4 misses are not hidden.
Sample size is always visible
You see how many observations a finding rests on. Nothing appears before there is enough data to support it.
No product recommendations, ever
The app tells you what your log says. It does not sell you a routine.
There is no account, and nothing to sync.
Rosacea is on your face. A rosacea diary that asks for a photograph is a face diary. RosaCue was built so that diary does not have to be anyone else’s problem.
- Entries, notes and photos are stored only on your device.
- No account, no email, no advertising identifier.
- Photos taken in the app are never added to your camera roll, and RosaCue does not upload your raw logs, notes, or photos to RosaCue servers.
- The optional explanation feature sends only derived numbers — never your logs, notes or photos.
This website makes no external requests and sets no cookies. That is why there is no cookie banner.
RosaCue is not a medical device. It does not diagnose, treat or prevent any condition. Patterns it shows are associations in your own log, not proof of cause. Decisions about treatment belong with a qualified clinician.
Built for a condition that does not end.
Interested in the beta? Email hello@rosacue.com.