Notice your recharge.
See how your estimated energy changes after sleep and rest. Learn what a replenishing night looks like for you.
Understand
your body.
Find your rhythm.
Meet Unfurl. Your Apple Watch’s stress and energy insights, with a little friend to help you make sense of your day.
See App Store availability
Coming to the App Store · iPhone + Apple Watch
US$1.99/month or US$14.99/year
All features. No free trial. Choose your pace.
A little more room to breathe.
Hi, I’m Furl.
Different days. Same little companion.
Made for Apple WatchHealth data stays on your devicesA kinder way to read your day
More “I get it.”
Less “push through it.”
Some days you’re ready for everything. Other days, a little space helps. Unfurl gives your body’s signals a simpler language, so you can choose your next small step.
Recognize a busy stretch.
Put a physiological stress estimate alongside your day. A reminder to pause, even when your calendar won’t.
Make room for a gentler pace.
See when your energy estimate is running low. Use it as context for your plans, together with how you actually feel.
Two numbers.
A little more
understanding.
Your body is complex. Your first glance doesn’t have to be.
Explore what goes into the estimatesBody Energy5–100
78 HIGH
How your reserve is trending.
An estimate that rises with recovery and changes with the demands of your day.
Stress Level0–100
23 REST
How hard your body is working.
Heart rate relative to your resting baseline, interpreted with movement and workout context.
Illustrative values, not live readings. Wellness estimates, not a diagnosis.
A face for
every kind of day.
Furl’s color, expression and little messages change with the app’s estimates. Curious, calm, recharging, a little frazzled: there’s room for all of it.
Meet all of Furl’s states
Your watch knows
the signals.
Furl helps tell the story.
- 1
Wear your Apple Watch.
Let it record your heart rate, sleep, steps and workouts as you go about your day.
- 2
Give Unfurl permission to read.
You choose access in Apple Health. Unfurl reads the relevant data and never writes back to Health.
- 3
Get to know your rhythm.
See Today, explore your week or month, and glance at widgets on your phone or watch. Body Energy needs about a day and a half to get started.
A small subscription.
Your whole day.
Stress, energy, Furl and the bigger picture. The same features in either plan, on your iPhone and Apple Watch.
- Today, weekly and monthly views
- Widgets and watch complications
- Furl’s states and contextual reminders
Your body’s business.
Stays your business.
Health calculations happen on your iPhone and Apple Watch. No health-data uploads to us. No account to create. No advertising trackers.
Read our privacy promiseA few things
you might be wondering.
Do I need an Apple Watch?
Yes. Unfurl uses data recorded by your Apple Watch and saved in Apple Health. You need a paired iPhone and Apple Watch running iOS 26 and watchOS 26 or later, with the relevant Health permissions enabled.
Does Unfurl measure how I feel emotionally?
No. Stress Level estimates physiological strain from your heart rate relative to your resting baseline, with activity context. It cannot read your thoughts or identify the cause of stress. How you feel is important context for the number.
Is Body Energy my watch battery?
No. Body Energy is an estimate of your body’s energy reserve, on a scale from 5 to 100. It reflects modeled changes from sleep, rest, activity and strain. It is not a measurement of calories or your watch battery.
What if I sleep without my watch?
After you put it back on, Unfurl can estimate a long gap using your usual patterns. It labels that contribution “Watch off (estimated)”. It cannot know how much you actually slept without the watch.
Is there a free trial?
No. The planned subscription is US$1.99 monthly or US$14.99 yearly, with the same features in both plans. A subscription is required to see your data. Final local pricing is shown by the App Store before you subscribe.
Where does my health data go?
The app calculates on your iPhone and Apple Watch. The devices exchange the latest results directly. Facefy does not receive your Health readings, and Unfurl does not upload them to a developer server.
A little insight.
A little kindness.
A day that’s yours.
Unfurl for iPhone and Apple Watch.
See App Store availability