Sunpop

Sunpop for iPhone

Know your sunlight window.

Sunpop turns your skin type, SPF, and current UV conditions into one practical estimate — burn time, protected time, and the vitamin D you gain — so you know when to seek shade or reapply.

iPhone app · Coming soon

See Sunpop in action Ask a question
Estimate only: an educational indicator, not a medical diagnosis.

Uses your app settings and live UV data when available.

One glance. Four useful answers.

Built for the moment

Personalized burn window

One number for your skin type, SPF, and current UV conditions.

SPF-aware timing

Session timing adapts after each re-apply decision so the limit stays practical.

Session tracker

Continuous time updates, simple risk state, and clear intervention moments.

Vitamin D estimate

See the IU you gain in a session against your daily goal — the other side of sun exposure.

How your sun window changes

A four-step session

Follow the estimate

Sunpop moves from setup to a clear next action as your exposure changes.

Sunpop UV baseline screen

Live engine state

Capture baseline

Location, profile, and SPF inputs are prepared before your first exposure decision.

Built around the day outside

Before, during, after
Friends heading outside on a sunny morning

Before you head out

Check the day’s UV level and your starting estimate.

Person resting beside a pool in direct sunlight

While you’re outside

Keep the current window and session status close at hand.

Sun-reddened shoulder after prolonged exposure

When risk changes

Get a clear prompt to seek shade, cover up, or reapply.

Privacy-first

Sunpop does not try to build a full profile. It keeps the estimation workflow local-first and uses only the minimal data needed for a session result.

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