Comparison

Weight Diary vs Watch Weight

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

Watch Weight

Easily record and visualize your bodyweight using your Apple Watch or iOS device. This app offers a simple interface to log daily measurements and view trends in charts or lists, with data syncing to the Health app.

Highlights
  • Daily weight logging
  • Apple Watch app for entry
  • Weight data charts
  • List view of entries
  • Syncs with Health app
  • Export data to email
Features
Read full description

Watch Weight is a daily bodyweight tracker that allows you to record weight measurements using your Apple Watch or iOS device. This app presents an easy-to-use interface for tracking your weight. You can enter your weight data daily, and then view the data in a chart, or in list format. Weight entries are also saved to the Health app. Watch Weight is useful for anyone who routinely measures their bodyweight and has an interest in easily recording and viewing their bodyweight data. ---------------------------------------- Why Use Watch Weight? ---------------------------------------- - Weight measurements saved to the Health app - Watch app for entering weight measurements - A controllable weight-data chart - No advertisements - The ability to export your bodyweight data as a spreadsheet-friendly CSV file, to email or any app (Premium Mode, a one-time in-app purchase)

Screenshots

Weight Diary4 screens
Watch Weight3 screens

Verdict

The call

The clearest difference is review sentiment: Weight Diary at 97% against Watch Weight's 47%. Weight Diary also leads on rating (4.9 vs 4.2) and in-app purchases (none vs 1). Watch Weight's advantage is price (Free vs $7.99) and iOS requirement (17.0 vs 26.0). On update cadence, ads, monetization model 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

Watch Weight is free to download; Weight Diary costs $7.99 up front. Watch Weight sells 1 one-off in-app purchase. 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 4.2. That said, the two scores are not equally well evidenced: Weight Diary has 2.6K ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 97% of Weight Diary's written reviews are positive against 47% of Watch Weight's.

UpkeepUpdate frequency

Weight Diary ships an update every 6 months, Watch Weight every 4 months. Both last shipped on November 1, 2026.

Scorecard7 real differences · 4 level
Weight Diary versus Watch Weight: the parameters behind the verdict, then further details
ParameterWeight DiaryWatch Weight
Price$7.99Free — better
Rating4.9 (2.6K ratings) — better4.2 (45 ratings)
Positive reviews96.8% of reviews — better46.7% of reviews
Number of ratings2.6K — better45
Update frequencyEvery 6 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
Best chart rank#126 — better—
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS26.017.0 — better
Further details — not scored
Size11 MB10 MB
Age rating4+4+
DeveloperCURLYBRACE APPS LTDYogasoft Applications

Customer experience

Weight Diary

All ratings2,628 ratings
Positive98.2%
Neutral1.1%
Negative0.7%
Written reviews989 reviews
Positive96.8%
Neutral1.5%
Negative1.7%

Watch Weight

All ratings45 ratings
Positive80.0%
Neutral8.9%
Negative11.1%
Written reviews15 reviews
Positive46.7%
Neutral26.7%
Negative26.7%

In-app purchases

None

Weight Diary

No in-app purchases

1 purchases

Watch Weight

One-time1
  • Simple Weight Premium$0.99

Questions

Is Weight Diary free?
Weight Diary costs $7.99, with no in-app purchases.
Is Watch Weight free?
Watch Weight is free to download, with in-app purchases available.
Which has better reviews, Weight Diary or Watch Weight?
Weight Diary is rated higher. Weight Diary averages 4.9 out of 5 from 2.6K ratings, while Watch Weight averages 4.2 from 45 ratings.
Do Weight Diary or Watch Weight have ads?
Neither Weight Diary nor Watch Weight shows ads.
Which is updated more often, Weight Diary or Watch Weight?
Weight Diary ships an update every 6 months, and Watch Weight every 4 months. Most recently, Weight Diary was updated on November 1, 2026 and Watch Weight on November 1, 2026.

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