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Questions, feedback, or something not working? Send us a note — we typically reply within 48 hours.

Frequently asked questions

• How does UV tracking work? Soluvit combines Apple Weather with a high-resolution forecast model to show a live, cloud-adjusted UV index for your location, then estimates your safe sun time from your skin type, clothing, and sunscreen.
• How accurate is the vitamin D estimate? Estimates are based on published research models that account for UV intensity, skin type, exposed body area, and SPF. They are wellness estimates, not medical measurements.
• Why does the app need my location? To fetch the UV index, weather, air quality, and sunrise/sunset for where you are. Soluvit uses “While Using” access; during an active session it keeps tracking in the background so the countdown stays live.
• Does the Apple Watch app need my iPhone? No. The watch app is fully standalone — it finds the UV, runs sessions, and warns your wrist on its own.
• How do I connect Apple Health? Soluvit asks for Health access on first launch. You can manage it anytime in Settings → Privacy & Security → Health → Soluvit.
• Where is my data stored? On your device and — if iCloud is enabled — in your private iCloud database, which only you can access. Health data lives in Apple Health. See the privacy policy.

Permissions

• Location Required for local UV and weather. Manage in Settings → Soluvit → Location.
• Health Optional. Saves time in daylight and vitamin D to Apple Health. Manage in Settings → Privacy & Security → Health.
• Notifications Optional. Burn warnings, sunrise briefings, and supplement reminders. Manage in Settings → Soluvit → Notifications.
• Alarms Optional. The Burn Limit Alarm rings through silent mode when your safe sun time runs out.

Troubleshooting

• UV shows “—” Check that location permission is granted and you’re online. Weather data needs a network connection.
• Widgets not updating Widgets refresh on a system-managed schedule. Try removing and re-adding the widget, and confirm location access.
• Health data not saving Confirm Health permissions in Settings → Privacy & Security → Health → Soluvit.
• Watch app can’t find the UV Make sure the watch has a network path (paired iPhone nearby, Wi-Fi, or cellular) and location permission on the watch.

Medical disclaimer

Soluvit provides wellness estimates and is not a medical device. UV and vitamin D calculations are approximations based on published research. Always consult a healthcare professional for medical advice about sun exposure and supplementation.