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Download SunDaily from the App Store and open it. The app walks you through a short onboarding: allow location access for UV data and Health access for Apple Watch daylight, then set your daily sunshine goal. You're ready to go.

SunDaily uses your location to fetch the UV index and forecast for your area from Apple Weather. UV levels vary a lot from place to place, so accurate data depends on knowing where you are.

Location is only accessed when you open the app or start a session. SunDaily never tracks your location in the background.

Start a manual session from the Home screen and end it when you head back inside. The session is saved to History and counts toward your daily goal.

If you wear an Apple Watch, your outdoor time is counted automatically, with no tapping required.

Your daily goal is set during onboarding and can be changed in Settings. The default is 15 minutes. SunDaily uses it for your progress ring and, with Pro, to decide whether a day counts toward your streak.

Tap any day in the 10-day forecast, or tap the UV Index header on Home for today. The day sheet shows the hourly UV curve, peak UV, solar noon, sunrise, sunset and that day's estimated sun window. Press and hold the chart to read UV and cloud cover at a specific time.

The sun window is an estimate of the better times to be outdoors on a given day, based on hourly UV and cloud cover. Peak marks the hours when UV is at its highest for the day; Good marks the hours around it. Sun protection is recommended whenever the UV index is 3 or higher.

Apple Watch measures your time in daylight using its ambient light sensor and saves it to Apple Health as "Time in Daylight."

SunDaily reads that data from Apple Health. There is nothing to install on your watch and nothing to set up: wear your Apple Watch outside and the minutes appear in SunDaily.

Time in Daylight is recorded by Apple Watch Series 6 or later, Apple Watch SE (2nd generation) or later and every Apple Watch Ultra, running watchOS 10 or later. Earlier models do not record it.

Today's Apple Watch daylight minutes are free: they fill your Home ring, today's point in History and your widget. Manual sessions show for the whole current week for free. SunDaily Pro unlocks your Apple Watch daylight for earlier days, plus month and year views.

First, make sure SunDaily has Health access. Open iPhone Settings → Health → Data Access & Devices → SunDaily and confirm that reading "Time in Daylight" is turned on.

Also check that your watch is running watchOS 10 or later and that Time in Daylight is on in the Watch app under Privacy. Data syncs to Health when your watch and iPhone are near each other, so give it a few minutes after coming back inside.

If you can see today's Apple Watch minutes but not earlier days, that is the free version: Apple Watch daylight for earlier days is part of SunDaily Pro.

No. SunDaily runs on iPhone. Your Apple Watch records Time in Daylight on its own through Apple Health, so you don't need a watch app for automatic tracking.

SunDaily Pro unlocks streaks and days this week, your full history (month and year views, plus Apple Watch daylight for earlier days), personal insights, and estimated Vitamin D and UV dose.

The free version includes the live UV index, the 10-day forecast with hourly UV, estimated sun windows, your daily goal, manual sessions with this week's history, and today's Apple Watch daylight minutes.

SunDaily Pro is $4.99 per month, or $39.99 per year with a 7-day free trial. Prices are in USD and may vary by region.

Tap any locked Pro feature in the app to open the paywall. Select the Annual plan and start the 7-day free trial. You won't be charged until the trial ends, and you can cancel anytime before then to avoid a charge.

SunDaily subscriptions are managed through the App Store. To cancel, open iPhone Settings → tap your name → Subscriptions → SunDaily Pro → Cancel Subscription.

You'll keep Pro access until the end of your current billing period.

Open SunDaily, go to Settings and tap "Restore Purchases." Make sure you're signed in with the same Apple ID that was used to buy SunDaily Pro.

First try "Restore Purchases" in Settings. If Pro still doesn't activate, email hello@sundaily.app and we'll help sort it out quickly.

No. SunDaily does not sell, share or monetize your personal data. Your health and location data stays on your device. See the Privacy Policy for full details.

Deleting the SunDaily app from your iPhone removes all locally stored session data. Health data written by SunDaily can be removed from the Health app under Browse → Activity → Time in Daylight.

To request deletion of any other data, email hello@sundaily.app.

No. SunDaily is a wellness habit tracker. UV data, sun windows, and Vitamin D and UV dose figures are estimates for general wellness reference. Talk to a healthcare professional about sun exposure and your personal health.