Direct Sun: for the days you're not just outside — you're out in it. DIRECT SUN (PRO) Start a session in Direct Sun mode and the headline number becomes your burn budget: the share of today's burn threshold you've spent, live on your Lock Screen and Dynamic Island. It never recommends more time and never estimates a tan — it only counts down, and tells you plainly when it's time to get out. Sunscreen (with the reapply timer) stretches the budget; nothing else does. YOUR BURN ALERTS GOT MORE HONEST (FREE, FOR EVERYONE) A sharp-eyed user in New Zealand — with a weather station on an all-day-sun deck — showed us a wrong cloud forecast could talk the app into "no burn risk" on a burning day. Fixed, at the physics level: burn math now refuses to believe clouds remove more than half of the clear-sky UV at your sun angle. Forecasts can be wrong; your burn alerts no longer inherit their optimism. ALSO NEW • Sky looks clear? Tell SolGlow, and for the next 30 or 60 minutes it uses true clear-sky UV instead of a cloudy forecast — labeled, with a countdown • Add your own vitamin-D foods (green-lipped mussels, anyone?) — and serving sizes now speak metric where you do • Raising your daily goal no longer erases history: past days keep the goal they were lived under, so met days stay met • Sun sessions now have an in-app status page, and past sessions can be reviewed and edited in History • "September Head-Start" is now Winter Head-Start — it always keyed off your latitude's seasons, and now its name works in both hemispheres • The serum projection now states its assumption: your current intake, held steady As always: no accounts, no analytics, no ads. Your data stays on your device (and your own iCloud only if you enable backup). Estimates are educational, not a diagnosis — always consult your clinician about vitamin D and blood testing.

Choose how you pay. SolGlow Pro now comes as a yearly plan alongside the one-time unlock. A NEW WAY TO GET PRO SolGlow Pro is now $9.99 per year, auto-renewing until you cancel — or stay with the one-time $19.99 unlock, yours forever with Family Sharing. Same features either way. If you already own the lifetime unlock, nothing changes for you: you keep it, and you'll never see a renewal prompt. A NEW LOOK ON LAUNCH A redesigned app icon and an animated opening built from SolGlow's own sun mark — the same mark now used across every widget, the Lock Screen, and the Apple Watch instead of a generic system symbol. As always: no accounts, no analytics, no ads. Your data stays on your device (and your own iCloud only if you enable backup). Estimates are educational, not a diagnosis — always consult your clinician about vitamin D and blood testing.

The real number. SolGlow now corrects for what the sun actually does. TRUE-D: OZONE-CORRECTED VITAMIN D The UV Index measures sunburn, not vitamin D — and the two diverge whenever ozone is high or the sun is low. SolGlow now re-weights UV into true vitamin-D UV using total-column ozone and sun angle, with the studies named on screen (Kazantzidis 2009; CIE action spectrum). Your free estimates only ever get more honest — they are never inflated. Pro's hour-by-hour reconstruction runs the full physics. SEE THE OZONE STEP Tap "See how this was calculated" on any number: when ozone changed today's result, a new cited step shows exactly how much — "a high-UV day can still be a weak vitamin-D day," with the math on screen. If your numbers read slightly different than before, that's the correction working; a one-time note in the app explains it. NOW FULLY LOCALIZED SolGlow now speaks German, Spanish, and Japanese everywhere — the app, every widget, the Apple Watch app and complications, Siri answers, and even the system permission prompts. HONEST AT MIDNIGHT Widgets, the Watch complication, and Siri now roll over at midnight instead of showing yesterday's sun as today's. If a number is stale, SolGlow says "open to refresh" — it never presents old data as live. SMOOTHER FIRST RUN & PURCHASES • Permission requests now come one at a time, in context — never stacked on the welcome screen • The paywall shows real progress for Restore, explains Family Sharing "Ask to Buy" approvals, and remembers a pending approval across launches • Tap a locked widget and it now opens the unlock screen directly AND DOZENS OF POLISH FIXES Manual sun logging now works from an empty history; the serum estimate stays neutral until you anchor it with a blood test; clearer colors in bright light; a gentler day-one welcome; offline trip planning shows the physics fallback instead of an error. SolGlow Pro is $19.99 — one-time, no subscription, Family Sharing included. As always: no accounts, no analytics, no ads. Your data stays on your device (and your own iCloud only if you enable backup). Estimates are educational, not a diagnosis — always consult your clinician about vitamin D and blood testing.

Automatic, and you can see why — the biggest SolGlow update yet. SEE THE WORK Every vitamin D number now shows its math. Tap "See how this was calculated" and SolGlow re-runs the exact same model it used for your estimate — minutes in daylight, sun angle, skin exposed, skin type, age — as a plain-language step list with its sources named on screen. No black box. The explanation can never disagree with the number, because it comes from the real calculator. It's free. PASSIVE DAYLIGHT CREDIT SolGlow now quietly credits the vitamin D from your Apple Watch's Time in Daylight — automatically. No GPS trail, no manual logging, no tracking. A free Daylight Credit card shows today's IU and minutes outside, with a confidence rating so you always know how the number was made. Just live your day; the credit adds up. ASK SIRI "Hey Siri, how much sun did I get in SolGlow?" Three new read-only Siri and Shortcuts actions — Today's Sun, Vitamin D Level, and Best Sun Window. They read what SolGlow already computed and speak it back; they never change your data. The level answer is always spoken as a model estimate, not a blood test. BEST SUN WINDOW ON STANDBY A new free widget puts today's best sun window on your nightstand (StandBy), Lock Screen, and Home Screen — glanceable, no unlock required. TRIP PLANNER + JET-LAG (PRO) Traveling? Get a day-by-day sleep and light schedule to shift your body clock to local time faster, grounded in published circadian research, plus your destination's UV outlook. Timing guidance, not medical advice. BURN GUARDIAN A free trailing-3-day sunburn advisory that flags when your sun adds up across days — even when no single day crossed your limit. Estimated from your skin type and sun angle; advisory only, never a diagnosis. SESSION LIFEGUARD (PRO) Forgot to tap Done on a sun session? SolGlow now reconstructs it so your sunlight isn't lost, and saves it to history with an honest "estimated" label. ALSO IN THIS UPDATE • Serum Level drill-down (Pro): tap your estimate for a trajectory chart with a 12-week projection and a shaded optimal range. • Doctor Report now carries both your life-stage RDA and your personal daily goal, with separate PDF and CSV exports. • A custom daily goal now grades consistently everywhere — Today, Week Plan, streaks, and widget all agree. • Now available in Japanese, German, and Spanish. • Faster tab switches, and the Apple Watch refreshes the moment you open it. Founders pricing continues: SolGlow Pro is a one-time $14.99 — lifetime, no subscription. Going up soon. Buy once, keep it forever. As always: no accounts, no analytics, no ads, no tracking. Your health data stays on your device. Estimates are educational, not a diagnosis — always consult your clinician about vitamin D and blood testing.

Switching to SolGlow? Now it's effortless — and your data is safer than ever. BRING YOUR HISTORY Coming from another sun tracker? SolGlow now imports your sunlight history straight from Apple Health — years of it, in one tap, no account. Start full, not empty. BACK UP EVERYTHING New Backup & Restore: save all your data — profile, history, sessions, blood-test baseline — to a single file you keep in Files or AirDrop to a new phone. Optional passphrase encryption. Still no servers, ever. SWITCHER SETUP A new "coming from another tracker?" path anchors your vitamin D to your last blood test and shows exactly what carried over. SET YOUR OWN GOAL Want a different daily target? You can now set your own vitamin D goal — in Profile, or by tapping the goal right on your Dashboard. (Also fixed: the larger widget now shows your vitamin D next to your goal, not your minutes outside.) - Various bug fixes and improvements. Founders pricing: SolGlow Pro is one-time $14.99 as of July 1st — lifetime, no subscription. Buy once, keep it forever. As always: no account, no analytics, no ads. Your data stays on your device.

The Celebrate the Sun update — SolGlow now makes hitting your goal feel as good as it is. CELEBRATIONS & STREAKS Meet your daily vitamin D goal and the app celebrates with you — plus streak milestones at 7, 30, and 100 days. Your goal now counts everything: sun, supplements, and diet, so winter days count too. SUNSCREEN REAPPLY TIMER Start a sun session wearing SPF and SolGlow schedules your reapply reminder — with a live countdown right on your Lock Screen, and an "I reapplied" button that restarts the timer without opening the app. YOUR WEEK IN THE SUN A beautiful shareable recap of your week — total vitamin D, goals met, your streak, and your sunniest day. Post it, send it, or just enjoy it. Optional Sunday-evening reminder. DARK MODE, REFINED Every card now renders beautifully in dark mode. CLEARER, FAIRER, MORE ACCESSIBLE One consistent daily goal across every screen. Honest guidance when location is off or you don't have an Apple Watch. First full VoiceOver and Dynamic Type pass. Outfit settings that visibly stick. Privacy is unchanged: no accounts, no analytics, no ads, no tracking. Your health data stays on your device.

Meet the Morning Light update — SolGlow now helps you use the sun, not just measure it. MORNING LIGHT Catch your first daylight of the day and see how soon after waking it landed. Build the morning-sun habit that helps anchor your energy, mood, and sleep — with a gentle daily reminder so you step outside in time. COFACTOR SUPPORT Vitamin D needs help to work. Log magnesium, K2, B12, and omega-3 — each with the daily amount that actually matters — and SolGlow shows whether your vitamin D has the cofactors it needs to be used. Tap the badge on your dashboard to set it up. LIFE-STAGE TARGETS Pick your stage — child, pregnant, 75+, or prediabetes — and your daily target and guidance adjust to the latest Endocrine Society groupings. EDIT YOUR HISTORY Did your watch miss a beach day? Open any day in History and fix the minutes. Your vitamin D, calendar, serum projection, and doctor report all update to match. APPLE WATCH SMART STACK Today's vitamin D progress and serum estimate now appear in the watchOS Smart Stack and as watch-face complications — right where you glance. A CANONICAL UV SOURCE SolGlow now writes the day's peak UV index to Apple Health, so the sun data on your device comes from an app that actually models it. Privacy is unchanged: no accounts, no analytics, no ads, no tracking. Your health data, food log, and location history stay on your device.

SolGlow 1.2 — Pro gets sharper. NEW PRO FEATURES - Sun Session Live Activity — start a session and watch your vitamin D tick up live on the Lock Screen and Dynamic Island, with a burn-safe countdown if UV gets dangerous. - Proactive sun-window alerts — once a day, when today's best UVB window opens. - Personalized supplement guidance — a clear "aim for X IU/day until your next test" line on the Serum card. - Custom serum target — set your own ng/mL goal. - SPF modeling — set your typical sunscreen and SolGlow accounts for it in both vitamin D synthesis and burn-safe time. - 90-day re-test reminders — anchored to your last blood-test date. - Doctor-ready report — one-tap PDF and CSV of your last 90 days, ready to share. - Travel UV planner — type a city, see its UV outlook before you fly. - Lock Screen and StandBy widgets to match the Home Screen one. Thanks for trying SolGlow. The 14-day Pro preview from 1.1.1 still applies — if your preview is still running, every new feature above is free to use until it ends.

SolGlow is now free to try. Get the first 14 days on us — full dashboard, full forecast, full Apple Watch app, full Home Screen widget, nothing held back. After 14 days, unlock everything forever with a one-time $4.99 purchase. No subscription. No renewals. Pay once, keep it.

SolGlow is now free to try. Get the first 14 days on us — full dashboard, full forecast, full Apple Watch app, full Home Screen widget, nothing held back. After 14 days, unlock everything forever with a one-time $4.99 purchase. No subscription. No renewals. Pay once, keep it. ALSO NEW IN THIS UPDATE Per-day clothing in History Forgot you switched from a suit to swim trunks halfway through Saturday? Open History → tap any day → adjust what you were actually wearing. Past vitamin D and burn estimates re-compute to match. Companion app sync (CalmTide) If you also use our recovery companion CalmTide, the two apps now share a small daily summary so each can show a fuller picture of your sun, sleep, and training signals. The exchange happens only on your device, between apps you've installed yourself — nothing leaves the phone. Smarter widget Faster refresh, more accurate snapshots, and a clean locked state once your preview ends so the widget stays a useful surface. Watch parity The watch app now reflects your preview and unlocked status correctly, and updates the moment you purchase from iPhone. Background refresh A new coordinator keeps the dashboard, widget, and watch in sync more reliably when you've been outside but the app is closed. Stability Fixes for App Group sharing, widget entitlement, and a handful of edge cases on the History and Forecast tabs. Privacy is unchanged: still no accounts, no analytics, no ads, no tracking. Your profile, food log, and location history stay on your device.