SunMax vs Stimly

SunMax turns sunlight into science-based guidance for vitamin D and safer sun exposure. Using real-time UV data, a personalized profile, and a multi-factor model built around your skin type, exposed skin, sun angle, session timing, and weather conditions, SunMax helps you plan outdoor time more intentionally. KEY FEATURES Free features: • Personalized setup Create your profile, take the Fitzpatrick skin quiz, and tailor guidance to your body and skin type. • Vitamin D session tracking Start live sessions and watch your estimated vitamin D and burn-risk guidance update as conditions change. Daily limit of 20 minutes. • Real-time UV + weather intelligence View current UV, hourly trends, and forecast context to choose better times for sun exposure. • Apple Health sync Connect Apple Health to autofill your height, weight, and body metrics, import last night's sleep for your morning check-in, and save your sun-session vitamin D and time in daylight back to Health. Optional and off until you turn it on. • Daily goals, supplement logging, and reminders Track sunlight and supplement intake together so you stay consistent with your routine. • Account benefits (free) Create a free account to save and sync your data across devices, and customize avatar clothing for more accurate exposure estimates. • Limited past session logging Add up to 1 past session per day to backfill your history. Premium subscription features: • Unlimited vitamin D sessions Track as many sessions as you want with no daily time limits. • Unlimited past session logging Add as many past sessions as you need to complete your vitamin D history. • Morning and evening light routines Track circadian rhythm exposure separately from vitamin D sessions. • Wellbeing insights and correlations See how your sun exposure affects your sleep, mood, and energy throughout the day — enriched by sleep data from Apple Health. • Advanced analytics and longer-range trends View weekly and monthly progress with historical data and detailed insights. • Streak freeze protection Protect your daily streak with monthly freeze days. Subscription details: SunMax offers optional auto-renewing subscriptions for Premium features, including monthly, yearly, and lifetime options where available. A 7-day free trial may be offered to eligible new subscribers. Built for walks, workouts, beach days, and everyday time outdoors, SunMax helps you use sunlight more intentionally. Important: SunMax provides estimates and guidance, not medical advice. Terms of Service: https://www.sunmaxapp.com/terms-of-service/ Privacy Policy: https://www.sunmaxapp.com/privacy-policy/

Coffee works differently for everyone — and costs everyone different sleep. Stimly estimates when your caffeine has dropped far enough to stop getting in your way at bedtime. Most caffeine apps just count milligrams. Stimly models how caffeine actually moves through your body — using a science-backed metabolism engine calibrated to your age, weight, sensitivity and habits. YOUR DAY AT A GLANCE • Live caffeine level — a real-time curve of what's active in your system now • Drinking now — log slow sips (yerba mate, big lattes) and watch absorption live • Sleep forecast — see when your body will be ready for quality sleep • Smart advice — gentle nudges when one more espresso would cost you tonight TRACK WITHOUT FRICTION • One-tap logging from your personal drinks library • Barcode scanner for bottled drinks • Daily limit with a clear budget bar (including a lower preset during pregnancy) • Symptom journal — connect how you feel to what you drank • 7-day history of everything you've logged STIMLY PRO — OPTIONAL PAID UPGRADE Everything above is free. These extras require Stimly Pro: • Tolerance tracking — see habituation build and fade week to week • Expert mode — brew method and dry mass for precision logging • Extended history — month and 90-day views • 30-day wellness export — a clean PDF of your patterns SUBSCRIPTION OR ONE-TIME PURCHASE You can get Stimly Pro in two ways: • A monthly subscription that renews automatically. • Open-ended access: one payment, no renewals, no free trial. It lasts as long as we run the Stimly service. If we end the service within 36 months of your purchase, we refund at least a proportional part of the price. See the Terms for details. Your local price is shown in the app before you buy. Payment is charged to your Apple Account at confirmation. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period — manage or cancel any time in your Apple Account settings. Buying open-ended access does not cancel an active subscription. PRIVATE BY DESIGN Your data stays yours. No ads, no tracking across apps, no data selling. Stimly is a wellness tool for healthy adults. It is not a medical device and does not provide medical advice — for health concerns, talk to your doctor. Terms: https://stimly.app/terms · Privacy: https://stimly.app/privacy