Comparison

Motion Counter 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

Motion Counter

Track your daily movement, including steps, walking, and running, with real-time progress visualization. Set personal goals and receive smart notifications to stay motivated. Routes are mapped with color-coded overlays for easy understanding.

Highlights
  • Daily movement tracking (steps, walk, run, commute)
  • 7-day history view
  • Route visualization on map
  • Color-coded route overlays
  • Personal goal setting
  • Smart notifications
Read full description

Motion Counter makes fitness tracking simple and accessible, regardless of your experience level. Set personal goals and watch your progress in real-time. Set smart notifications to stay on track without constantly checking your phone. The app tracks your daily movement—including steps, walking, running, and commuting—with a 7-day history view. Visualize your routes on the map with color-coded overlays: Green for walking, Red for running, and Blue for commuting. Powered by advanced motion sensors and location technology, Motion Counter delivers accurate data in an elegant, battery-efficient design. Privacy First: Your activity data is stored locally on your device and is never transmitted to external servers or the cloud.

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

Motion Counter4 screens
Vitamin D Sun Tracker4 screens

Verdict

The call

The clearest difference is price: Vitamin D Sun Tracker at Free against Motion Counter's $1.99. Vitamin D Sun Tracker also leads on update cadence (weekly vs every 5 months) and ratings volume (30 vs 1). Motion Counter's advantage is in-app purchases (none vs 4) and rating (5.0 vs 4.8). On review sentiment, ads, device support and iOS requirement 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

Vitamin D Sun Tracker is free to download; Motion Counter costs $1.99 up front. Vitamin D Sun Tracker sells 4 in-app purchases, starting at $4.99 per month. Motion Counter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Motion Counter holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Vitamin D Sun Tracker has 30 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Motion Counter ships an update every 5 months, Vitamin D Sun Tracker weekly. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

Scorecard6 real differences · 4 level
Motion Counter versus Vitamin D Sun Tracker: the parameters behind the verdict, then further details
ParameterMotion CounterVitamin D Sun Tracker
Price$1.99Free — better
Rating5.0 (1 ratings) — better4.8 (30 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings130 — better
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.616.0 — better
Further details — not scored
Size4 MB42 MB
Age rating4+17+
DeveloperAGD Studio LLCGreycloud LLC

Customer experience

Motion Counter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Vitamin D Sun Tracker

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Motion Counter

No in-app purchases

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 Motion Counter free?
Motion Counter costs $1.99, with no in-app purchases.
Is Vitamin D Sun Tracker free?
Vitamin D Sun Tracker is free to download, with in-app purchases available.
Which has better reviews, Motion Counter or Vitamin D Sun Tracker?
Motion Counter is rated higher. Motion Counter averages 5.0 out of 5 from 1 ratings, while Vitamin D Sun Tracker averages 4.8 from 30 ratings.
Do Motion Counter or Vitamin D Sun Tracker have ads?
Neither Motion Counter nor Vitamin D Sun Tracker shows ads.
Which is updated more often, Motion Counter or Vitamin D Sun Tracker?
Motion Counter ships an update every 5 months, and Vitamin D Sun Tracker weekly. Most recently, Motion Counter was updated on November 2, 2026 and Vitamin D Sun Tracker on November 9, 2026.

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