Fasting
A live ring and the time left in your fast, with the metabolic phase and when to eat. Tap it to open the fasting page.
Free Kality for Apple Watch
Your day, on your wrist.
See your fast, the calories and protein you have left and how you slept, right on your watch face. Everything stays in sync with Kality on your iPhone: start a fast on one, and the other follows.
Free. Today, the fasting timer and all the complications need no subscription. Needs watchOS 10 or later.
In sync
One Kality, on your phone and your wrist.
Your iPhone is where your data lives. It sends the numbers that matter to your watch as they change, so you never open an app just to check a number.
- Start or end a fast on either device. The other updates, along with the Live Activity and your fasting reminders
- Start or stop a night on either device. Your watch and iPhone join their recordings into one night
- Calories, protein and last night arrive on your watch whenever they change on your iPhone
- Out of range? No problem. A change made on the watch waits and is sent when your iPhone is back
Complications
Put Kality on any watch face.
Five complications in Apple’s own styles: open-ring gauges, curved corners and a tinted title line. They fit Modular, analog and most other faces.
Calories
Calories left today against your goal, as a gauge, a curved corner or a line of text.
Protein
Grams so far, grams to go. Handy when you are chasing a protein target.
Sleep
Last night’s sleep and score. In the evening it becomes a Start sleep button, then a running timer while you sleep.
Kality Today
One rectangular or inline complication with your fast, calories left, last night and protein together.
Every style
Circular, corner, rectangular and inline, so each one fits the face you already use.
Today & fasting
Today at a glance. A fast you can start from your wrist.
Scroll through three pages: Today, Fasting and Sleep. Today shows your fast and its metabolic phase, calories and protein left, and last night. The fasting page is a live ring you can start or end with a tap.
- Fasting countdown with the metabolic phase, like early ketosis
- Start a fast of 12 to 36 hours, and the watch remembers your last choice
- Calories and protein left, updated the moment you log on your iPhone
- Last night’s sleep, from Apple Health or your own recording
Sleep · Premium
Start the night from your wrist.
Your iPhone on the nightstand records the sound and finds snoring. Your watch records your movement and reads your overnight heart rate. In the morning, Kality joins both into one night, with your Snore Score.
- Start or stop on the watch, the complication or your iPhone; both follow
- A movement chart and an estimated time asleep when you wake
- The watch never uses its microphone, and audio never leaves your iPhone
- Already tracking with Apple Watch Sleep, WHOOP or Oura? Kality shows that night and adds the snoring
Free & Premium
The watch app is free to use.
Free
Included, no subscription
- Today at a glance on your wrist
- Fasting timer with the metabolic phase
- Start and end a fast from the watch
- All five complications and every style
- Sleep recording on your iPhone, with a Snore Score
Premium
For the full night
- Start and stop a night from your watch
- Wrist movement and overnight heart rate in your night
- Every past night, its recording and what changes your snoring
- Longevity and Fitness, with sleep included
Questions about Kality on Apple Watch
Does Kality work on Apple Watch?
Yes. Kality has an Apple Watch app for watchOS 10 and later. It installs from the Watch app on your iPhone, or from the App Store on your watch, and you need Kality on your iPhone because it is where your data lives.
Is the Kality Apple Watch app free?
Yes. Today at a glance, the fasting timer and every watch face complication are free. Starting a sleep recording from your watch is part of Premium. Recording a night on your iPhone, with a Snore Score, is free.
How does it sync with my iPhone?
Your iPhone is the source of truth. It sends your current fast, today’s calories and protein and last night’s sleep to the watch whenever something changes. Start or end a fast on the watch and it is applied on your iPhone too, including the Live Activity and your fasting reminders. If the phone is out of reach, the watch keeps the change and sends it later.
Which complications are there?
Fasting, Calories, Protein and Sleep, each as a circular gauge, a curved corner gauge, a rectangular widget and an inline line of text, plus Kality Today, a rectangular and inline summary of your fast, calories left, last night and protein.
Does the watch use its microphone?
No. When you record a night, your iPhone on the nightstand records the sound and finds snoring on the device with Apple’s sound analysis, and the watch only records your wrist movement and reads your overnight heart rate. The audio never leaves your iPhone.
Does Kality replace Apple’s sleep tracking?
No. If your Apple Watch, WHOOP, Oura or another tracker writes sleep to Apple Health, Kality shows that night, with its stages, and adds snoring on top. Kality never writes sleep to Health, so a night is never counted twice.
Can I start a night from my watch face?
Yes. The Sleep complication turns into a Start sleep button in the evening, from 6 PM to 3 AM. One tap opens Kality and starts the night, and the complication then shows a running timer.
Explore Kality
More from Kality.
Sleep & snoring
Record your night on iPhone, get a Snore Score and listen back. Free.
Sleep tracking
Macros & micronutrients
Over 40 nutrients per meal, from omega-3 to added sugar.
Nutrient breakdown
Longevity & VO₂ max
A Longevity Score, a Fitness score and an estimated VO₂ max.
Longevity Score
Insights
Your top foods, meal timing and nutrient gaps over weeks.
Insights
Recipes & shopping list
Recipes from what’s in your fridge, and a shared list.
Recipes
Family
One Premium covers your partner. Share meals and a shopping list.
Kality Family
For coaches
A free dashboard for the meals and goals your clients share.
Coach dashboard