Comparison

Weight Diary vs Weight Tracker

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

Head to head
About

Weight Diary

Track your weight loss journey with a clear trend line to visualize progress. Log daily weights, estimate loss rates, and plan for your goals. Supports custom start dates and integrates with health platforms.

Highlights
  • Daily weight logging
  • Clear trend line visualization
  • Progress and goal tracking
  • Custom start date setting
  • Apple Health and scale sync
  • BMI and calorie calculators
  • Data backup and export
Read full description

Understand your weight trends over time. Weight Diary helps you cut through daily fluctuations with a clear trend line, so you can quickly see whether you’re moving toward your goal. Log your weight each day to track your progress, estimate your rate of weight loss, and see how long it may take to reach your target. Starting a new diet or routine? Choose a custom start date to measure progress from any point that matters to you. With powerful graphs, goal planning tools, Apple Health support, and Withings/Fitbit scale sync, Weight Diary gives you a simple and effective way to stay on track. Main Features: • See your weight, progress, and goal remaining at a glance • Choose a custom start date for a new diet or milestone • Follow your daily weights with a clear trend line • Switch between the graph, summary, or full weight log with a single tap • Explore your progress over months or years in the full-screen graph • Record body fat % and add custom notes • Plan ahead with goal and calorie calculators • View your BMI with a clear visual display • Comprehensive unit support for pounds, kilograms, and stones • Sync with Apple Health and Withings/FitBit scales • Full data backup, import, and export

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/

Screenshots

Weight Diary4 screens
Weight Tracker4 screens

Verdict

The call

The clearest difference is price: Weight Tracker at Free against Weight Diary's $7.99. Weight Tracker also leads on update cadence (weekly vs every 6 months) and device support (4 vs 2). Weight Diary's advantage is rating (4.9 vs 4.4) and in-app purchases (none vs 13). On ratings volume and ads 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

Weight Tracker is free to download; Weight Diary costs $7.99 up front. Weight Tracker sells 13 in-app purchases, starting at $4.99 per month. Weight Diary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Weight Diary holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 2.6K and 999 respectively. Written reviews point the same way: 97% of Weight Diary's written reviews are positive against 64% of Weight Tracker's.

UpkeepUpdate frequency

Weight Diary ships an update every 6 months, Weight Tracker weekly. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

Scorecard9 real differences · 2 level
Weight Diary versus Weight Tracker: the parameters behind the verdict, then further details
ParameterWeight DiaryWeight Tracker
Price$7.99Free — better
Rating4.9 (2.6K ratings) — better4.4 (999 ratings)
Positive reviews96.7% of reviews — better63.8% of reviews
Number of ratings2.6K — better999
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#199 — better—
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS26.015.0 — better
Further details — not scored
Size11 MB123 MB
Age rating4+4+
DeveloperCURLYBRACE APPS LTDJoe Waldow

Customer experience

Weight Diary

All ratings2,628 ratings
Positive98.2%
Neutral1.1%
Negative0.7%
Written reviews983 reviews
Positive96.7%
Neutral1.5%
Negative1.7%

Weight Tracker

All ratings999 ratings
Positive86.0%
Neutral7.0%
Negative7.0%
Written reviews163 reviews
Positive63.8%
Neutral9.8%
Negative26.4%

Bugs and requests

Weight Diary

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Weight Diary

No 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

Questions

Is Weight Diary free?
Weight Diary costs $7.99, with no in-app purchases.
Is Weight Tracker free?
Weight Tracker is free to download, with in-app purchases available.
Which has better reviews, Weight Diary or Weight Tracker?
Weight Diary is rated higher. Weight Diary averages 4.9 out of 5 from 2.6K ratings, while Weight Tracker averages 4.4 from 999 ratings.
Do Weight Diary or Weight Tracker have ads?
Neither Weight Diary nor Weight Tracker shows ads.
Which is updated more often, Weight Diary or Weight Tracker?
Weight Diary ships an update every 6 months, and Weight Tracker weekly. Most recently, Weight Diary was updated on October 18, 2026 and Weight Tracker on October 17, 2026.

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