MySun - Tanning & UV Index

Live UV, personal Sun Time, SPF reminders and vacation planning on iPhone, Apple Watch and widgets.

See the UV around you. Understand how your outdoor time adds up.

MySun combines a local UV Index and forecast with a personal skin profile, sunscreen reminders, live session tracking, widgets, and a private skin timeline—all in one calm iPhone app.

KNOW TODAY’S UV • See the current UV Index, daily peak, hourly curve, sunrise, and sunset • Review the upcoming forecast before outdoor plans • Get high-UV alerts and a morning UV brief • Check UV from Home Screen and Lock Screen widgets

TRACK OUTDOOR TIME • Start a sun session with a live timer and Live Activity • Follow a conservative modeled exposure margin based on UV and Fitzpatrick skin type • Get reminders to review exposure, seek shade, and reapply sunscreen • Add past sessions and review weekly history

PERSONAL TO YOUR SKIN • Complete a Fitzpatrick skin-type quiz • Record sunscreen, exposed skin, and current skin appearance • Keep a private on-device photo timeline with side-by-side comparisons • See rough vitamin D estimates from logged sessions

PRIVATE BY DESIGN • No ads or cross-app tracking • Your skin profile, sessions, and tan photos stay on your device • Apple Health integration reads Time in Daylight only, when you choose • Local notifications keep reminders on your device

BUILT FOR INFORMED CHOICES • Clear explanations show what affects each estimate • Low-UV and high-UV guidance avoids one-size-fits-all advice • Calm language helps you review exposure without alarmist scoring

IMPORTANT MySun provides model-based educational estimates—not medical advice, a diagnosis, a UV measurement, or a guarantee against skin damage. Sunscreen does not make UV exposure risk-free. Follow local guidance and consult a qualified clinician for health concerns.

Some features require an optional Sun+ subscription.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/