Comparison

D Minder Pro vs 28

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

28

This app offers personalized fitness and wellness plans based on your menstrual cycle. Get daily exercise videos, nutrition advice, and emotional insights tailored to your body's hormonal fluctuations. Understand your biology and optimize your health.

Highlights
  • Daily cycle tracking
  • Personalized exercise videos
  • Hormone-balancing nutrition profiles
  • Science-backed emotional insights
  • Phase-specific guidance
  • No equipment workouts
Features
Read full description

Your energy, strength, appetite and mood shift through your cycle. 28 builds your day, your workouts and your meals around them. 28 combines cycle-based workouts, phase-based nutrition and calorie tracking, hormone health insights and Gaia, your AI wellness companion, on top of simple period and ovulation tracking. Rated 4.6 stars from more than 5,600 ratings in the US App Store. NEW: YOUR DAY, IN ORDER - A new Today screen that walks you through your day in order: check in, learn, nourish and move - It always shows your next step, from morning to night - See your phase, energy and fertile window at a glance NEW: TALK TO GAIA - Check in and ask questions with your voice. Just tap and talk - Prefer typing? Chat with Gaia anytime WORKOUTS THAT MATCH YOUR PHASE - Daily workouts designed for the menstrual, follicular, ovulatory and luteal phases - Programs from trainers of iconic supermodels - Push harder when your energy peaks, and scale back when your body asks for rest NUTRITION & CALORIE TRACKING - Track calories with targets that fit your goals and your phase - Log meals by snapping a photo - Phase-based food guidance for every part of your cycle RECIPES FROM WHAT YOU HAVE - Snap a photo of your fridge, pantry or ingredients - Get recipes matched to your current phase GROCERIES IN ONE CLICK - Order phase-specific groceries in one click through Instacart or Uber Eats MEET GAIA, YOUR AI WELLNESS COMPANION - Ask Gaia about your cycle, energy, cravings, workouts and nutrition, anytime - Get personalized guidance based on your phase and logs - Gaia provides general wellness information, not medical advice PARTNER SHARING - Invite your partner to see where you are in your cycle - They get tips on how to help in each phase, plus your fertile window OURA RING & APPLE WATCH - Connect Oura Ring or Apple Watch to refine your fertile window estimate with your overnight temperature HORMONE HEALTH, EXPLAINED - Daily insights on how estrogen and progesterone typically change across your cycle - Understand shifts in mood, sleep, energy and appetite PERIOD & OVULATION TRACKING - Period calendar with cycle predictions - Fertile window and ovulation estimates - Log symptoms, PMS, mood and more - Sign in with your email or phone number WHY WOMEN CHOOSE 28 Most fitness and diet apps assume every day is the same. Your body doesn't work that way. 28 uses cycle-based wellness to help you train, eat and feel your best all month. 28 is for general wellness and fitness. It is not a medical device and is not intended to diagnose, treat or prevent any condition, or to be used as contraception. Fertile window estimates should not be used to prevent pregnancy. Talk to a healthcare professional about medical concerns. SUBSCRIPTION 28 offers optional auto-renewing subscriptions to unlock full features. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. Privacy Policy: https://28.co/privacy Terms of Use: https://28.co/terms

Screenshots

D Minder Pro4 screens
284 screens

Verdict

The call

The clearest difference is rating: 28 at 4.6 against D Minder Pro's 4.0. 28 also leads on ads (none vs shown) and review sentiment (47% vs 34%). D Minder Pro's advantage is update cadence (every 2 days vs every 5 days). On price, in-app purchases, monetization model 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. D Minder Pro sells 2 one-off in-app purchases and 28 sells 27 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

28 holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 1.8K and 5.7K respectively. Written reviews point the same way: 34% of D Minder Pro's written reviews are positive against 47% of 28's.

UpkeepUpdate frequency

D Minder Pro ships an update every 2 days, 28 every 5 days. Both last shipped on November 1, 2026.

Scorecard5 real differences · 5 level
D Minder Pro versus 28: the parameters behind the verdict, then further details
ParameterD Minder Pro28
PriceFreeFree
Rating4.0 (1.8K ratings)4.6 (5.7K ratings) — better
Positive reviews34.0% of reviews46.8% of reviews — better
Number of ratings1.8K5.7K — better
Update frequencyEvery 2 days — betterEvery 5 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size37 MB183 MB
Age rating12++17
Developerontometrics28 Wellness, LLC

Customer experience

D Minder Pro

All ratings1,805 ratings
Positive72.5%
Neutral6.0%
Negative21.4%
Written reviews682 reviews
Positive34.0%
Neutral13.2%
Negative52.8%

28

All ratings5,670 ratings
Positive89.2%
Neutral3.5%
Negative7.3%
Written reviews513 reviews
Positive46.8%
Neutral13.1%
Negative40.2%

User reviews

D Minder Pro

From 1.8K App Store ratings

What we love

  • 🚀 Useful for tracking vitamin D levels
  • 🌞 Helps with safe sun exposure
  • 👍 Accurate calculations
  • 🔋 Doesn't drain battery
  • 💡 Innovative concept

Room to improve

  • 🐛 Crashes or bugs
  • 🔍 Difficult to use or navigate
  • 🔧 Lacks customization options
  • 📊 Inaccurate data or estimates
  • 💸 Paid version not worth the cost

28

From 5.7K App Store ratings

What we love

  • 🚀 Helpful insights and guidance
  • 🔒 Empowering women's health
  • 👍 Visually appealing and easy to use
  • 🚀 Cycle-synced workouts and nutrition
  • 👍 Informative and educational

Room to improve

  • 🐛 Tracking issues with irregular cycles
  • 💡 Lack of customization options
  • 💡 Expensive premium subscription
  • 🔒 Concerns about privacy and data usage
  • 👎 Overly sexualized imagery

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

28

Reported bugs

4 issues
  • Inability to update period start/end dates
  • Workout videos experiencing sound issues
  • App randomly logging users out
  • Recipes and grocery lists not syncing properly

Requested features

6 requests
  • Ability to manually log period start/end dates
  • Integration with Apple Health for cycle data
  • More diverse representation of body types
  • Customizable meal plans and grocery lists
  • Monthly subscription option instead of annual
Show 1 more
  • Expanded workout library and exercise variety

In-app purchases

2 purchases

D Minder Pro

One-time2
  • DMinder Premium$1.99
  • Lifetime Ad Removal$24.99
27 purchases

28

Subscriptions27
  • Partner Sharing3 Days trial$6.991 Month
  • 28 Premium Monthly3 Days trial$15.991 Month
  • 3 months premium3 Days trial$19.003 Months
Show 24 more
  • 28 Premium Monthly3 Days trial$19.991 Month
  • 28 Premium Annual3 Days trial$19.991 Year
  • 28 3 months premium3 Days trial$26.003 Months
  • 28 Premium Annual3 Days trial$29.991 Year
  • 28 Wellness Premium3 Days trial$37.003 Months
  • 28 Wellness Premium3 Days trial$37.993 Months
  • 28 3 months premium3 Days trial$39.003 Months
  • premium annual3 Days trial$39.001 Year
  • 28 Wellness Premium3 Days trial$39.993 Months
  • 28 Premium Annual3 Days trial$39.991 Year
  • 28 Wellness Premium3 Days trial$49.993 Months
  • 28 Annual Premium 20243 Days trial$62.001 Year
  • 28 Wellness Premium3 Days trial$64.006 Months
  • 28 Wellness Premium3 Days trial$67.991 Year
  • 28 Wellness Premium3 Days trial$71.991 Year
  • 28 Wellness Premium3 Days trial$75.003 Months
  • 28 Premium Annual3 Days trial$79.001 Year
  • Premium3 Days trial$89.001 Year
  • 28 Wellness Premium3 Days trial$95.991 Year
  • 28 Wellness Premium3 Days trial$119.991 Year
  • 28 Wellness Premium3 Days trial$129.006 Months
  • 28 Wellness Premium3 Days trial$179.001 Year
  • 28 Wellness Premium3 Days trial$179.991 Year
  • 28 Wellness Premium3 Days trial$249.991 Year

Questions

Is D Minder Pro free?
D Minder Pro is free to download, with in-app purchases available.
Is 28 free?
28 is free to download, with in-app purchases available.
Which has better reviews, D Minder Pro or 28?
28 is rated higher. D Minder Pro averages 4.0 out of 5 from 1.8K ratings, while 28 averages 4.6 from 5.7K ratings.
Do D Minder Pro or 28 have ads?
D Minder Pro shows ads; 28 does not.
Which is updated more often, D Minder Pro or 28?
D Minder Pro ships an update every 2 days, and 28 every 5 days. Most recently, D Minder Pro was updated on November 1, 2026 and 28 on November 1, 2026.

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