Comparison

Natural Delight vs BigDose

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Natural Delight

This app guides you on safe and effective sun exposure to naturally boost vitamin D levels and improve overall wellbeing. It provides personalized recommendations based on location, UV index, and skin type, along with real-time weather forecasts.

Highlights
  • Personalized sun exposure recommendations
  • Location-based UV index tracking
  • Skin type analysis
  • Real-time weather updates
  • Daily sun exposure forecasts
  • Immune system support guidance
Read full description

Support your health and boost your vitamin D - naturally. Natural Delight is your daily guide to safe and effective sun exposure, designed to help you increase your vitamin D levels and improve your wellbeing. - Personalized sun-exposure recommendations
 based on your location, current UV index and skin type. Natural Delight calculates the optimal amount of sunlight you need each day to get enough vitamin D without overexposure. - Real-time updates & daily forecasts
. Stay informed with forecasted weather conditions, powered by Apple Weather, so you can easily catch that window of time in the sun. - Embrace the natural benefits of sunlight. 
Just the right amount can strengthen your immune system, support bone health, and lift your mood - and Natural Delight helps you do it safely. Simple, smart, and focused on your health - Natural Delight is the easiest way to get the vitamin D your body needs. Note: This app is intended for general wellness and informational use only. It does not provide medical advice or replace professional healthcare guidance.

About

BigDose

Features
Read full description

Most sun apps pick a lane: vitamin D or sun safety. BigDose tracks both — in real time — so you can get outside with a plan instead of a guess. DOSE YOUR D. DEFEND YOUR SKIN. BigDose is built for people who want vitamin D from the sun and still respect their skin. We combine live Apple Weather, your skin type, sunscreen habits and sun angle to show when conditions are right for UVB — and when burn risk is climbing. YOUR DAILY COMMAND CENTER • Vitamin D window today — a sun-path diagram with Apple Weather sunrise and sunset, your personal D window, total daylight and how today compares to yesterday • Live UV, humidity, cloud cover, hourly and 3-day forecast from WeatherKit at your GPS • Daily sun IU goal with progress from sessions, supplements and food logged separately — no double-counting • Sun risk today when live sessions push past your personal burn threshold • Recommended daily IU tuned to age, skin type and goals LIVE SUN SESSIONS THAT RESPECT BOTH GOALS Start a session when your window is open. BigDose tracks elapsed time, estimated vitamin D toward your daily target and MED (burn risk) used on a live dial. Alerts when session safety is on: • Turn-over near 50% — rotate exposure • Optional Nanny Mode adds wrap-up at 75%, guidance at 95% and a 98% reminder • Stop-now at 100% MED — always, Nanny on or off You always end the session. We never do it for you. DOSE DNA — YOUR PROFILE, YOUR MATH Set Fitzpatrick skin type, typical coverage, sunscreen use, supplement defaults and a blood-level goal in ng/mL. BigDose personalizes session timing, safe max duration and safety alerts to you — not a generic chart. PLAN BEFORE YOU STEP OUTSIDE Session planner shows safe max duration at today’s UV, time to reach your D goal and milestone timeline. First-session guide walks new users through the dial, alerts and how to stop on their terms. PROGRESS THAT CONNECTS INTAKE TO LEVEL Log supplements and vitamin D food sources. Import labs when you have them. Progress estimates how your 25(OH)D trend is moving toward your goal using sun, pills and diet — with honest limits: modeled estimates, not a lab result. History keeps a ledger of sun, supplements and food by day. NOTIFICATIONS THAT MATCH YOUR STYLE Solar event reminders, next D opportunity nudges, optional AM light window alerts and session safety notifications when the app is in the background. Toggle what you want during onboarding or anytime in Settings. Nanny defaults on — turn it off when you want a lighter touch. SMART GUIDANCE, NOT A LECTURE Science tab explains how BigDose thinks about D and burn risk in plain language. Info buttons throughout — tap the (i) when you want context, skip them when you do not. BUILT FOR REAL OUTDOOR DAYS Live Activities keep an active session on your Lock Screen. Home Screen widgets surface today’s plan. Optional Apple Health import. High-contrast UI designed for glare, gloves and one-handed use outside. WHAT BIGDOSE IS — AND IS NOT BigDose is wellness guidance you choose to use. It is not medical advice, not a diagnosis and not a substitute for your clinician. Blood tests remain the source of truth for vitamin D status. Use shade, clothing and sunscreen beyond what any app can model. Whether you are optimizing morning light, chasing a short mid-day window or logging a supplement on a rainy day, BigDose helps you dose your D and defend your skin — same app, same dashboard, no false tradeoff. We ship often and read every report. Thanks for helping us make BigDose sharper every build.

Screenshots

Natural Delight4 screens
BigDose4 screens

Verdict

The call

The clearest difference is update cadence: BigDose at every 2 days against Natural Delight's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Natural Delight ships an update every 2 months, BigDose every 2 days. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level
Natural Delight versus BigDose: the parameters behind the verdict, then further details
ParameterNatural DelightBigDose
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS26.026.0
Further details — not scored
Size19 MB10 MB
Age rating4+4+
DeveloperIsabel BriantGrant Perry

In-app purchases

None

Natural Delight

No in-app purchases

None

BigDose

No in-app purchases

Questions

Is Natural Delight free?
Natural Delight is free to download, with no in-app purchases.
Is BigDose free?
BigDose is free to download, with no in-app purchases.
Do Natural Delight or BigDose have ads?
Neither Natural Delight nor BigDose shows ads.
Which is updated more often, Natural Delight or BigDose?
Natural Delight ships an update every 2 months, and BigDose every 2 days. Most recently, Natural Delight was updated on October 12, 2026 and BigDose on October 16, 2026.

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