D Minder Pro vs SunMax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D Minder Pro
Track and manage your Vitamin D intake and sun exposure. This app calculates optimal sun exposure times based on your profile and location, and integrates with Apple Health for seamless data exchange. It also provides forecasts and notifications for vitamin D generation opportunities.
- Vitamin D tracking and management
- Apple Health integration
- Sun exposure calculation
- Optimal exposure time alerts
- Daily forecasts and solar position
- History and future event scheduling
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The idea behind this application is that it will help you track and manage your Vitamin D. This new version integrates with the Apple Health app to make seamless data exchange possible in the following ways: * on setup, profile information is fetched from the Health App if the user allows it * the user's weight (a factor in D generation) is fetched on an ongoing basis, making it unnecessary to update it * the app will write vitamin D doses, including session information into the Health app You setup basic information one time, like your height and weight and skin type and then any time you are outside, during the prescribed hours (and parts of the year), you can have it compute the amount of D you are getting in a stopwatch interface. It will also track how long you can stay out and warn you when the time is up. The application will notify you with the next opportunity to generate vitamin D. Each day, you can see forecasts based on your location, and you can also see the solar position, your generated vitamin D vs. target etc. In the Pro version, you can see your exposures's history and you will be able to schedule future events for next exposures. Weather data provided by Apple Weather. https://weatherkit.apple.com/legal-attribution.html Subscriptions: - D-Minder Pro Annual: $9.99/year (auto-renews) - D-Minder Pro Lifetime: $24.99 (one-time purchase) Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Terms of Use: https://dminder.info/terms Privacy Policy: https://dminder.info/privacy
SunMax
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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/
Screenshots
Verdict
The clearest difference is ads: SunMax at none against D Minder Pro's shown. SunMax also leads on iOS requirement (15.0 vs 17.0). D Minder Pro's advantage is update cadence (every 2 days vs every 5 days). On price, 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
Both are free to download. D Minder Pro sells 2 one-off in-app purchases and SunMax sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
D Minder Pro ships an update every 2 days, SunMax every 5 days. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.
| Parameter | D Minder Pro | SunMax |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1.8K ratings) — better | — |
| Positive reviews | 33.9% of reviews | — |
| Number of ratings | 1.8K — better | — |
| Update frequency | Every 2 days — better | Every 5 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 27 MB |
| Age rating | 12+ | 4+ |
| Developer | ontometrics | Oliver Stojcevski |
Bugs and requests
D Minder Pro
Reported bugs
5 issues- App crashes on launch or during use
- Location settings not working properly
- Inconsistent data or calculations between devices
- Inability to save or sync user data
- Overcast detection not functioning correctly
Requested features
5 requests- Add more food options for vitamin D
- Ability to edit past sun sessions
- Provide more detailed reports and analytics
- Add reminders or notifications for sun exposure
- Allow customization of skin type and location
SunMax
Not enough reviews yet to summarise bugs or requests.
In-app purchases
D Minder Pro
- DMinder Premium$1.99
- Lifetime Ad Removal$24.99
SunMax
- Premium Monthly7 Days trial$4.991 Month
- Premium Yearly7 Days trial$39.991 Year
- SunMax Premium Lifetime$69.99









