Comparison

Transform40 Coaching vs Vitamin D Sun Tracker

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

Head to head
About

Transform40 Coaching

Features
Read full description

Welcome to Transform40 Coaching App, where you will gain access to a comprehensive suite of features designed to transform your body and mind. Key features of your app are: 1. Customised Workout Programs: Aligning with our Classes & PT Structure, Transform40 offers a diverse range of programs tailored to your specific needs. By tracking your lifts and monitoring your progress on a weekly basis, you can optimise your results and witness continuous improvement. 2. Exercise Library: Gain unlimited access to our extensive exercise library, complete with detailed demonstrations. Empower yourself to design and structure your own workouts, utilising a wide range of exercises. 3. Goal Tracking & Progress Monitoring: Stay on track with your habits, nutrition, and training through daily and weekly check-ins. Our dedicated coaches will monitor your progress, helping you stay focused on achieving your goals. By identifying and overcoming any patterns or obstacles together, we ensure steady progress. 4. Personalised Interactive Meal Planning/Nutritional Guidance: Receive expert guidance from your personal coach in all matters related to nutrition. Learn how to structure your daily food intake, ensuring optimal recovery, energy, and results from your workouts. 5. Integrated Communication with Your Coach and Community Members: Join a supportive community where you can communicate with both your coach and fellow members. Benefit from social accountability and surround yourself with like-minded individuals who are on a similar fitness journey. Transform40 Coaching App is your comprehensive tool for achieving your fitness goals. Join us today and embark on a transformative journey towards a healthier and stronger you! * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

About

Vitamin D Sun Tracker

This app estimates your Vitamin D intake from sun exposure and supplements. It provides real-time UV index, weather, and personalized guidance on optimal sun times and duration to prevent sunburn. Track your progress with historical data and insights.

Highlights
  • Real-time Vitamin D estimates
  • Live UV Index and weather integration
  • Personalized sun timer with sunburn guidance
  • 48-hour UV forecast for optimal exposure
  • Supplement and cofactor tracking
  • Historical data and trend analysis
  • Optional Apple Health integration
Read full description

Vitamin D is the easiest deficiency to fix, but the hardest to track. Bask estimates the Vitamin D you get from sun exposure and supplements, so you can stop guessing and start hitting your goal. Bask is a sun tracker and sun timer that reads the sky, live UV Index, weather, your skin, and what you're wearing to tell you the best time to step outside and exactly how long to stay. SUN SESSIONS + SUN SAFETY - Real-time Vitamin D estimates from our live UV Index, UV tracker, weather, and our sun tracker algorithm - Built-in sun timer with time-to-sunburn guidance so you never overdo it - Time-to-sunburn timer can assist you during your tanning sessions. - Live Activities keep your session on the Lock Screen (iOS 16.1+) FIND YOUR BEST SUN WINDOWS - 48-hour UV forecast of your optimal exposure times with our sun tracker - Get alerts right before your best Vitamin D window opens SUPPLEMENTS + COFACTORS - Quick-log common vitamin D doses in a tap with our vitamin tracker - Track magnesium & vitamin K2 with bite-size education cards HISTORY, STREAKS & INSIGHTS - A clean timeline of every sun exposure session and supplementation. - Track Vitamin D labs to see the impact of your sun exposure and supplement habits. - 7 / 30 / 90-day trends to watch your Vitamin D levels climb PRIVATE BY DESIGN - Your data stays on your device - Optional Apple Health integration - Optional opt-in leaderboard Bask is for educational and wellness tracking only and does not provide medical advice. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Transform40 Coaching3 screens
Vitamin D Sun Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Vitamin D Sun Tracker at weekly against Transform40 Coaching's every 3 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. Transform40 Coaching sells 1 in-app purchase, starting at $99.99 per month and Vitamin D Sun Tracker sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Transform40 Coaching ships an update every 3 months, Vitamin D Sun Tracker weekly. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
Transform40 Coaching versus Vitamin D Sun Tracker: the parameters behind the verdict, then further details
ParameterTransform40 CoachingVitamin D Sun Tracker
PriceFreeFree
Rating—4.9 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size52 MB42 MB
Age rating17+17+
DeveloperBODIES BY TJ PTY LTDGreycloud LLC

In-app purchases

1 purchases

Transform40 Coaching

Subscriptions1
  • Monthly Coaching$99.991 Month
4 purchases

Vitamin D Sun Tracker

Subscriptions3
  • Monthly$4.991 Month
  • Yearly3 Days trial$24.991 Year
  • Yearly3 Days trial$29.991 Year
One-time1
  • Lifetime$79.99

Questions

Is Transform40 Coaching free?
Transform40 Coaching is free to download, with in-app purchases available.
Is Vitamin D Sun Tracker free?
Vitamin D Sun Tracker is free to download, with in-app purchases available.
Do Transform40 Coaching or Vitamin D Sun Tracker have ads?
Neither Transform40 Coaching nor Vitamin D Sun Tracker shows ads.
Which is updated more often, Transform40 Coaching or Vitamin D Sun Tracker?
Transform40 Coaching ships an update every 3 months, and Vitamin D Sun Tracker weekly. Most recently, Transform40 Coaching was updated on October 19, 2026 and Vitamin D Sun Tracker on October 15, 2026.

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