Comparison

Weight Tracker vs Fitdays

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

Fitdays

Record and track family weight data with a smart scale. Visualize progress with charts and reports, and sync with Apple Health. Supports up to 24 users for comprehensive family fitness monitoring.

Highlights
  • Record family weight data
  • Connect to smart weight scale
  • Chart and report display
  • Apple Health synchronization
  • Support for up to 24 users
  • Body measurement tracking
Features
Read full description

Fitdays is an application for recording family weight data. This application can help you connect a weight scale to measure and record weight, and provide chart display and reports that can be used with family members. In the iPhone based on iOS12, when you use our smart scale to measure your weight, the relevant data supports synchronization with Apple Health. This application is a family weight data recording application. All data is for reference only for weight control and long-term exercise and fitness monitoring. It is not used as a medical device data basis. If you have medical diagnosis or treatment decisions, please consult your doctor and other medical staff. ● Girth Chart Record Helping with better bodybuilding ● Measurement Instructions Guiding step by step ● Trend Chart Tracking every changes of body ● Family Use Full support up to 24 users ● 15 App Colors Popular colors of choice

Screenshots

Weight Tracker4 screens
Fitdays4 screens

Verdict

The call

The clearest difference is rating: Weight Tracker at 4.4 against Fitdays's 3.7. Weight Tracker also leads on review sentiment (64% vs 28%) and update cadence (weekly vs every 3 weeks). Fitdays's advantage is in-app purchases (none vs 10). On price, ratings volume, 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 10 in-app purchases, starting at $4.99 per month. Fitdays asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Weight Tracker holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 1K and 1.8K respectively. Written reviews point the same way: 64% of Weight Tracker's written reviews are positive against 28% of Fitdays's.

UpkeepUpdate frequency

Weight Tracker ships an update weekly, Fitdays every 3 weeks. Both last shipped on November 6, 2026.

Scorecard5 real differences · 5 level
Weight Tracker versus Fitdays: the parameters behind the verdict, then further details
ParameterWeight TrackerFitdays
PriceFreeFree
Rating4.4 (1K ratings) — better3.7 (1.8K ratings)
Positive reviews63.8% of reviews — better28.0% of reviews
Number of ratings1K1.8K — better
Update frequencyWeekly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.015.0
Further details — not scored
Size131 MB153 MB
Age rating4+4+
DeveloperJoe WaldowGUANGDONG ICOMON TECHNOLOGY CO., LTD

Customer experience

Weight Tracker

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

Fitdays

All ratings1,849 ratings
Positive65.1%
Neutral5.4%
Negative29.5%
Written reviews900 reviews
Positive28.0%
Neutral15.0%
Negative57.0%

User reviews

Weight Tracker

From 1K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Convenient weight tracking
  • 📈 Helpful graphs and data visualization
  • 🎮 Gamification elements are motivating
  • 🤖 Responsive developer support

Room to improve

  • 🐛 Occasional bugs and crashes
  • 🤔 Confusing or complex interface for some users
  • 💰 Paid features could be better value
  • 🔄 Lack of data import/export or syncing options
  • 🕰️ Desire for longer-term historical data

Fitdays

From 1.8K App Store ratings

What we love

  • 🚀 Easy to use
  • 📊 Provides detailed body metrics
  • 🔗 Syncs with Apple Health
  • 💻 Works well with scale

Room to improve

  • 🐛 Connectivity issues with Bluetooth
  • 📉 Inaccurate body composition measurements
  • 🔍 Confusing data presentation
  • 🔒 Privacy concerns
  • 💤 Drains battery

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

Fitdays

Reported bugs

4 issues
  • App crashes on login
  • Fails to sync data consistently
  • Incorrect weight/BMI calculations
  • Calendar view not functioning properly

Requested features

4 requests
  • Add ability to manually edit/delete entries
  • Improve data visualization and charting
  • Implement pregnancy mode
  • Allow multiple user profiles with privacy

In-app purchases

10 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-time6
  • Scelta Black Edition Dark Mode$1.99
  • My Weight Diary in Really Red$1.99
  • Weight Tracker in Warp Drive$1.99
Show 3 more
  • Small Tip: Cup of Coffee$2.99
  • Weight Tracker Scelta Pro$59.99
  • Scelta Pro Lifetime$59.99
None

Fitdays

No in-app purchases

Questions

Is Weight Tracker free?
Weight Tracker is free to download, with in-app purchases available.
Is Fitdays free?
Fitdays is free to download, with no in-app purchases.
Which has better reviews, Weight Tracker or Fitdays?
Weight Tracker is rated higher. Weight Tracker averages 4.4 out of 5 from 1K ratings, while Fitdays averages 3.7 from 1.8K ratings.
Do Weight Tracker or Fitdays have ads?
Neither Weight Tracker nor Fitdays shows ads.
Which is updated more often, Weight Tracker or Fitdays?
Weight Tracker ships an update weekly, and Fitdays every 3 weeks. Most recently, Weight Tracker was updated on November 6, 2026 and Fitdays on November 6, 2026.

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