Comparison

Weight Tracker vs ShapeScale

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

Head to head
About

Weight Tracker

This app helps you track weight changes by comparing weekly averages, offering a clearer view of your progress beyond daily fluctuations. It uses data visualization, goal setting, and gamified elements to make weight management motivating and fun.

Highlights
  • Weekly average weight comparison
  • Linear regression for trend analysis
  • Goal setting with adherence percentage
  • Interactive data visualization
  • Gamified progress with points and achievements
  • Online leaderboards for competition
Features
Read full description

Your weight fluctuates daily. In contrast to other apps Scelta compares weekly averages and shows your real weight progress! If you have ever used a scale regularly you know this problem: Your weight fluctuates from day to day and it’s difficult to say whether you gained weight, lost weight or just had a heavy day. Salty food, hydration status, sleep, stress, and hormonal fluctuations are just some of the many factors that can influence your weight heavily in the short term. To know what’s really going on you need to compare averages to each other. - eg. the average of the last 14 days to the average of the 14 days before. The difference, also known as delta, between these time spans is a very informative indicator of what really happens to your body weight. Scelta calculates this “scale delta“ for you and makes weight tracking approachable, meaningful, a lot of fun and incredibly motivating. Data visualisation of the next generation: • Your real progress: Scelta compares your average weight for the selected time span to the previous time span, eg. 7 days vs 7 days prior • Linear regression instead of peaks and valleys: A line of best fit shows your actual weight trend graphically • Reach your own goal: select eg. “- 1 lb per week” (or “- 0,5kg per week” depending on your local unit) and see at a glance how good you’re doing by taking a look at your adherence percentage • Hear your weight: Swipe on the graph to see the exact value of a data point and its linear regression, hear and feel (on devices with Taptic Engine) the value of your weight entries (you’ve never seen, heard or felt your weight this way!) • Scelta shows your total progress and how far you have come since you started your goal • After setting a new goal (eg. a lean gaining phase after losing fat) you can still go back to older goals to see your previous progress • See a graph of your goal adherence for every day since you first set your goal. Swiping on it reveals your weekly rate of weight change and how well you adhered to your goal in the 7, 14 oder 30 day average comparison on that day. There has never been anything like it before. And because everything is more fun as a game: • The RPG where you are the main character: Collect Scelta Points by reaching your own goal and level up • Prolific story: Unlock many different achievements for your adhering to your weight adventure • Online leader boards: Compete with your friends or users worldwide to see who accomplishes their personal weight goals best Losing weight on a fat-loss diet, keeping your lean-gaining phase in check or if you’re just trying to maintain your current weight: Weight Tracking has never been this fun! What position will you reach with your personal progress in the leader boards? Download Scelta now and try it today! ——— Scelta integrates with the Apple Health app: Scelta uses the Health app that is pre-installed on your iPhone to show already existing weight data and to save new entries. Because of this Scelta will ask you to grant read- and write-access to your weight data. Your weight is only visible to you and is not sent or visible to anyone but yourself. Achievements you unlock and points you collect to climb the leader boards are a result of how well you adhere to your goals and not your actual weight entries. The goal you set for yourself is not visible to anyone else as well. Scelta Terms of Use - https://www.waldow.app/terms-scelta/ Scelta Privacy Policy - https://www.waldow.app/privacy-scelta/

About

ShapeScale

This app uses a 3D body scanner to provide detailed body composition analysis, including body fat percentage, girth, and volume measurements. Track your progress visually with 3D comparisons and heatmaps, and receive personalized feedback to achieve your fitness goals.

Highlights
  • 3D Body Scan
  • Personalized Health & Shape Scores
  • Body fat percentage and BMI tracking
  • Girth and Volumetric Measurements
  • Heatmap for change visualization
  • Side-by-Side 3D Scan Comparison
Features
Read full description

ShapeScale is a state-of-the-art 3D body scanner designed to revolutionize the way individuals approach wellness and fitness. Merging the worlds of advanced technology and comprehensive body composition analysis, ShapeScale provides a sophisticated, personalized experience. While to use the ShapeScale app to its full potentials requires you to use the ShapeScale device, you can explore our demo accounts even without a device and get a first glimpse into our user experience. How it works: You simply step on ShapeScale and hold still while the sensor head rotates around you and captures your body scan. The scan is then processed and after a few minutes, it’s ready for you in the ShapeScale app. ShapeScale provides you with both visual data (showing the body in 3D from various angles) and quantitative data, offering metrics like body fat percentage, and girth and volume measurements of different body parts. You can visually track changes in your body over time through features like the side-by-side comparisons, and the heatmap that highlight areas of change. Additionally, ShapeScale offers tailored feedback, helping you set and achieve goals by understanding your body's unique composition and progress. ShapeScale Features & Benefits: - 3D Body Scan: Get a 3D virtual twin of yourself and dive into visual, interactive, and science-backed fitness tracking like never before. - Personalized Health & Shape Scores: Receive personalized and comprehensive insights based on your body shape that will help guide your fitness journey. - Body weight, body fat percentage and BMI: Get an accurate reading of all your usual body metrics. - Demographic data: Learn where you stand compared to the rest of the US population, gaining valuable insights and a clearer perspective on your individual metrics, progress and goals. - Girth Measurements: Get precise girth measurements in less than a minute, providing a comprehensive view of your progress and areas of improvement. - Localized Volumetric Measurements: Dive into innovative wellness with volumetric measurements, offering a detailed and more 3D perspective on your body composition. - Heatmap: Stay motivated and informed with our intuitive heatmap feature, which instantly highlights areas of change and providing a visual representation of your fitness achievements. - Side-by-Side 3D Scan Comparison: Visualize your progress like never before with our interactive side-by-side 3D scan comparisons, showcasing your transformation in a sophisticated and user-friendly manner. Discover the future of fitness with ShapeScale, and let us inspire and empower you every step of the way. Download the ShapeScale app and use your own or your local health & wellness center’s device to redefine what’s possible for your health & wellbeing!

Screenshots

Weight Tracker4 screens
ShapeScale4 screens

Verdict

The call

The clearest difference is rating: Weight Tracker at 4.4 against ShapeScale's 3.9. Weight Tracker also leads on ratings volume (1K vs 45) and review sentiment (64% vs 54%). ShapeScale's advantage is in-app purchases (none vs 13). On price, update cadence, ads 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. Weight Tracker sells 13 in-app purchases, starting at $4.99 per month. ShapeScale asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Weight Tracker holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Weight Tracker has 1K ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 64% of Weight Tracker's written reviews are positive against 54% of ShapeScale's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Weight Tracker versus ShapeScale: the parameters behind the verdict, then further details
ParameterWeight TrackerShapeScale
PriceFreeFree
Rating4.4 (1K ratings) — better3.9 (45 ratings)
Positive reviews63.8% of reviews — better53.8% of reviews
Number of ratings1K — better45
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size131 MB99 MB
Age rating4+12+
DeveloperJoe WaldowShapeScale

Customer experience

Weight Tracker

All ratings1,000 ratings
Positive86.0%
Neutral7.0%
Negative7.0%
Written reviews163 reviews
Positive63.8%
Neutral9.8%
Negative26.4%

ShapeScale

All ratings45 ratings
Positive71.1%
Neutral4.4%
Negative24.4%
Written reviews13 reviews
Positive53.8%
Neutral0.0%
Negative46.2%

Bugs and requests

Weight Tracker

Reported bugs

3 issues
  • Watch app crashes on launch
  • Weight data not syncing correctly
  • Unable to edit or delete past entries

Requested features

5 requests
  • Add option to track body fat percentage
  • Improve weight goal setting and customization
  • Provide more flexible data entry and editing
  • Integrate with more third-party health apps
  • Expand historical data and trend analysis

ShapeScale

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

Weight Tracker

Subscriptions4
  • Scelta Pro Monthly$4.991 Month
  • Scelta Pro Annually$19.991 Year
  • Scelta Pro Annually$29.991 Year
Show 1 more
  • Scelta Pro7 Days trial$29.991 Year
One-time9
  • Scelta Black Edition Dark Mode$1.99
  • Losing Weight in "Deep Ocean"$1.99
  • Gain Weight in "Gold is best"$1.99
Show 6 more
  • My Weight Diary in Really Red$1.99
  • Weight Tracker in Warp Drive$1.99
  • Small Tip: Cup of Coffee$2.99
  • Big Tip: Pot of Coffee$5.99
  • Weight Tracker Scelta Pro$59.99
  • Scelta Pro Lifetime$59.99
None

ShapeScale

No in-app purchases

Questions

Is Weight Tracker free?
Weight Tracker is free to download, with in-app purchases available.
Is ShapeScale free?
ShapeScale is free to download, with no in-app purchases.
Which has better reviews, Weight Tracker or ShapeScale?
Weight Tracker is rated higher. Weight Tracker averages 4.4 out of 5 from 1K ratings, while ShapeScale averages 3.9 from 45 ratings.
Do Weight Tracker or ShapeScale have ads?
Neither Weight Tracker nor ShapeScale shows ads.
Which is updated more often, Weight Tracker or ShapeScale?
Weight Tracker ships an update weekly, and ShapeScale weekly. Most recently, Weight Tracker was updated on October 26, 2026 and ShapeScale on October 25, 2026.

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