Your Skin, Understood.
Keep what works, drop what doesn't. Stella tracks your skin over time and what moves it — your routine, your sleep, your activity, your stress.
- 130+
- Skin Signals
- 30s
- Per Scan
- Weekly
- Reports
The Problem
Most skincare is guesswork.
Here's what it looks like when you can actually see what's working.
Worth keeping
Paula's Choice 2% BHA
observed 8 weeks
The pore pattern Stella was watching for showed up. Scores have been steady for the past month. Worth keeping in your routine.
See what Stella saw →
Worth stepping back
Retinol Serum 1.0%
observed 12 weeks
Your comfort scores dipped between weeks three and six. Stella suggests easing back on frequency before re-introducing.
See what Stella saw →
Still assessing
The Ordinary Niacinamide
observed 3 weeks
Three weeks of data so far. Tone scores have been stable — give it another cycle to see what shifts.
See what Stella saw →
What knowing looks like
A Different Approach
A clearer picture of your skin.
Not a recommendation engine. Not a diagnostic tool. Just the data you need to make your own calls.
Scan in 30 seconds.
Hold your phone to your face. Stella reads 130+ signals and starts building your baseline.
See what's behind it.
Connect your sleep, stress, and cycle data. When your scores shift, you'll see what else changed — and why.
Decide with data.
Your weekly report connects your scores to what you've been using. Keep what your skin responds to. Cut what it doesn't. Do it with data.
No credit card required.
The Bigger Picture
Your skin reflects more than your routine.
Sleep, stress, and your cycle all show up in your skin. Stella helps you see what moved and why.
Works alongside Apple Health · Fitbit · Oura · Whoop · Samsung Health · Suunto · Withings · and more
See which products are earning their place.
Add what you use. Each week Stella connects your routine to your skin scores. When things shift, you'll see what may have influenced it — and when.
“Your routine has been consistent this week — which makes the clarity dip easier to read. Texture has been your strongest signal for the past month.”
Available on iOS and Android.
What Stella Tracks
The mirror's the last to know.
Pigmentation, hydration, texture. Skin moves in slow patterns your eye doesn't catch. Stella's computer vision does. So you see the changes before they're staring back at you.
Skin Sensitivity
Hydration, redness, oil balance, barrier integrity
Clarity and Breakouts
Breakout types, pore size, post-breakout marks, location patterns
Tone and Pigmentation
Sun spots, melasma, freckles, overall pigmentation
Aging and Structure
Fine lines, deep lines, firmness, jawline definition
Eye Area
Dark circles, puffiness, under-eye bags, hollows
Baseline Properties
T-zone oil, U-zone hydration, melanin content
The Science
"The goal was always simple: show you what's there."
Every metric Stella tracks starts with a question: can we measure this accurately from a phone camera? If the answer is yes, and the data is meaningful, it makes it into the app.
Dr. Alice Rudd · Head of Skin Science · MBBS Monash University
What People See
“The product recommendations are genuinely spot on. I followed the app's advice and added retinol to my evening routine, and the change in my skin was visible pretty quickly. What I love most is that I can actually track and see this transformation through the app every day, which keeps me consistent and motivated. It feels like a smart, practical way to keep improving how you look over time. A really powerful tool for anyone serious about their skin.”
“I love this app! I've been scanning for a couple of months and it's been really cool to see how my skin responds to different products that I have tried. I also just started using the skin journal that tracks my habits throughout the day so I'm really excited to see how my day to day also affects my skin.”
“I love using this app because it has shown me how to optimize my skincare products effectively so that I'm getting the best results. It also recommends budget friendly products that I should consider to make my skin look better.”
“Awesome app, learning things about my skin that I didn't know about.”
I stopped guessing and started scanning. Four weeks later, the data showed me exactly what was changing — and what wasn't.
"We built Stella because we wanted to understand what our routine was actually doing, and see it in the data."
What you use is only part of the picture. Stella helps you see how your skin responds to your routine, environment, treatments and day-to-day life, over time.
Get Started →Joanne Wismeyer · Co-Founder · See Stella
Questions
Common questions.
Stella reads 26 metrics across six categories: sensitivity, clarity, tone, pigmentation, aging, and eye area. Each metric tracks a specific aspect of how your skin looks.
About 30 seconds. You use your phone camera in good lighting. No special equipment needed.
Stella's scans are designed to be consistent and comparable across sessions, which is more useful than any single "accurate" number. What matters is how your scores move over time, not the absolute value on day one. The more you scan, the more meaningful the data becomes.
Yes. Consistent lighting gives you the most comparable results. Stella works best in natural, even light (like near a window). Scanning in the same spot each time helps your trends stay meaningful. The app will let you know if conditions look off.
Most users scan two to three times per week. The more data Stella has, the more meaningful the patterns it can surface in your weekly reports.
Stella gives you observations about how your skin looks over time. You decide what to do with that information. The agency stays with you.
Stella is free to try. No credit card required to start scanning and tracking your skin.
Your scans are processed to generate your skin scores and stored securely. We never sell your personal or biometric data. Anonymised, aggregated insights may be used to improve Stella's accuracy over time. Nothing that identifies you.
No. Stella makes appearance-level observations about your skin. It does not diagnose, treat, or assess any medical condition. If you have a skin concern, please see a dermatologist or healthcare professional.
What your skin is actually telling you.
Start seeing what your skincare is doing.
Scan your skin. Track your scores. See what's shifting. The data is waiting. You just need to start.
Stella provides personalised skincare suggestions based on your skin's appearance. These are appearance-level observations, not therapeutic advice. Stella is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. If you have a skin concern, please consult a healthcare professional.