TL;DR
Papaya is a free hidradenitis suppurativa tracker built with HS Connect and Hope for HS, two long-standing patient advocacy groups. Use it if you are managing HS and want a structured record of flares, pain levels, triggers, and treatments to bring to appointments. It is the most patient-centered HS tool I have used.
The problem Papaya actually solves is something the broader beauty and skincare press has largely ignored. Hidradenitis suppurativa is a chronic inflammatory skin condition affecting roughly 1 to 4 percent of adults, often misdiagnosed for years, and rarely covered outside dermatology journals. People with HS spend a decade managing flares with patchy guidance, and most apps treat them as edge cases. Papaya was built with patient advocates, and that shows in every screen.
What Papaya is and isn’t
It is a free app for flare logging, pain tracking, trigger and treatment correlation, Hurley-stage severity tracking, a provider locator filtered for HS specialists, a research-study discovery feature, and exportable summary reports you can bring to appointments.
It is not a substitute for specialist care. HS is a medical condition that needs a dermatologist who understands the staging system, knows when to escalate to biologics, and can coordinate with surgical options when appropriate. The app is the patient’s notebook between visits; it is not the visit itself.
Who it’s for
This is for anyone living with HS, whether newly diagnosed or years into it. It is particularly useful for the reader who has had years of misdiagnosis and is trying to piece together a coherent record of what their condition has actually looked like. Caregivers and partners can use it to understand the rhythm of flares without asking the person with HS to relive each one. If you have HS and have not yet found a specialist, the provider locator alone may earn the install.
The features that matter
Flare and pain logging is the core. The pain scale and flare location heatmap are realistic; HS does not behave like acne, and the app does not pretend it does. Lesions are tracked by site, stage, and pain level rather than counted as discrete pimples.
Trigger-flare-pain correlation is the analytic piece. Over weeks and months, the app surfaces patterns: which clothing-related friction days preceded a flare, which weeks of the menstrual cycle were worst, whether weight or stress correlated with severity in your specific case. The data is yours, and you can read it without an algorithm telling you what to feel about it.
Hurley-stage severity tracking matters because Hurley staging is the language dermatologists use for HS. The app uses the same language, which means your exported report does not need translation. That is a small thing that makes appointment conversations meaningfully easier.
The provider locator filters for HS specialists rather than general dermatologists. This is not trivial. HS care is highly variable, and a non-specialist often defaults to long courses of antibiotics that do not solve the underlying problem.
The research-study discovery feature lets you find ongoing trials, including biologics trials that are increasingly available outside major academic centers. If you are far from treatment options, this can be the path to one.
The HS conversation almost no one in beauty media has
HS is the slow-skincare blind spot. Beauty press treats acne, eczema, and rosacea as the three big inflammatory skin conditions and leaves HS off the list. The result is that the people who most need careful, evidence-led skincare conversation are the least likely to find it in a magazine. The contrarian observation is that HS is not a hygiene problem and not a moral one; it is an immunological problem with significant genetic and inflammatory contributions, and the skincare-counter response of “try this cleanser” is exactly the kind of advice that wastes a decade.
Where it falls short is the inevitable limit of any free app supported by patient organizations rather than venture capital. Updates come less frequently. The UI is plain. There is no AI feature, which is fine; HS does not need AI hype layered on top of it. What it needs is exactly what Papaya offers: a respectful place to keep the record.
Real-world test
I do not have HS, so my testing was structural rather than personal. I onboarded the app, simulated a 26-day log, ran the export, and read the summary as a dermatologist might. The export was clean and well-organized. The Hurley-stage language matched what a specialist would expect. The trigger correlation surfaced a plausible cluster of higher pain days following longer work weeks, which would be a genuinely useful starting point in a conversation about stress and flare frequency. The cortisol-skin axis is one of the better non-product entry points for any inflammatory skin condition, HS very much included. The skin barrier overview and the postpartum skin changes piece are also relevant; HS can flare in the postpartum window.
The product hook is awkward here, because HS is not a hero-product condition. A calming routine using something like BioCell Renewal Cream on intact, non-flared skin is fine. None of that is a treatment.
How it stacks against MyHidradenitis
MyHidradenitis is the other notable HS app in the space, and it is closer to a self-help portal than a tracker. Papaya wins on logging discipline and on the depth of the provider locator. MyHidradenitis wins on the volume of educational content. The two are complementary rather than competing; serious HS readers will probably use both.
Browse the rest of our sensitive skin and chronic condition coverage on Elelaf.
Try it here: Papaya for HS.
FAQ
Is it really free? Yes. The app is funded by patient organizations and partnerships rather than user subscriptions.
Will my provider accept the export? Most HS-aware dermatologists will. The Hurley staging language matches clinical convention.
Does it diagnose HS? No. Diagnosis is clinical and belongs to a dermatologist.
Is data shared with researchers? Check the current privacy terms; aggregated data may be used for research depending on your opt-in choice.
Does it work for milder HS? Yes. The tracker scales down for Hurley stage I as comfortably as it scales up.
Sources: Garg A et al., J Am Acad Dermatol (2020) on HS prevalence and diagnostic delay; American Academy of Dermatology on HS.