Burntimes

Burntime now works hands-free with Siri, Spotlight, and Shortcuts. Just ask to start a sun timer or check how long you can safely be in the sun, and Burntime answers using your saved skin type, UV index, and SPF. A new Today-screen tip makes it easy to add these to Siri, and layouts now read more comfortably on iPad.

Burntimes 2.0 — a pro upgrade for safe sun, still 100% offline. • Sun Dose engine: track your cumulative UV dose (Standard Erythema Dose) per session and week, with a "burns' worth" read. • Sun Dose tab: a 7-day dose chart against a comfortable-daily reference line. • Photosensitivity check: flag medications that increase sun sensitivity and trim your safe-sun budget accordingly. • Reapply Schedule: exact reapply times and how much sunscreen to pack for a planned outdoor block. • Best-time-today forecast: a per-hour safe-minutes strip and the safest time of day to go out. A private tracker — no account, no network. Informational, not medical advice.

Version 1.1 introduces three major upgrades: Body Exposure — a new "Skin Exposed" picker on the Today screen lets you choose how much skin is actually in the sun: Face & Neck, Arms & Face, Upper Body, or Full Body. Less skin exposed means a longer safe budget. The live countdown, SPF Planner, and CSV export all reflect your choice. Vitamin D Estimate — the Today screen now shows how many minutes of unprotected sun your skin type needs to stimulate meaningful vitamin D synthesis at the current UV index and coverage level, grounded in published dermatology research (Holick 2004, Webb 1988). The countdown ring shows your vitamin D progress as a secondary arc. This estimate is for bare skin only — sunscreen suppresses it. Reapply Timer Fix — the countdown card now shows a live countdown to your next reapply time (2 hours after session start, then 2 hours after each "I reapplied" tap), so you always know exactly when to reapply next.