Comparison

Weight Diary vs Weight Log

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 Log

Easily track your weight progress with a clean interface. Visualize your journey with intuitive graphs, monitor monthly progress, and set achievable goals. Premium features include BMI calculation and daily notes.

Highlights
  • Intuitive weight graph
  • Monthly progress history
  • Goal weight setting
  • BMI calculation (premium)
  • Daily notes (premium)
Features
Read full description

We make tracking your weight easy because losing it should be the hardest part. We've taken a minimalist approach when developing and designing Weight Log, so you will find that there is little to no clutter with the interface and experience. Every element has been carefully chosen to provide you the most optimal experience when using the app. We are certain that utilizing Weight Log will provide you a simple weight tracking solution you've been always looking for. Check out some of the features that we offer below. Weight Graph: We offer an intuitive weight graph that will display your progress from start to finish, so you will be able to see your overall progress through your entire weight loss journey. History: In addition to showing your weight progress per day, we also organize the months of each year so you can see how much you've lost for each month. Goal Weight: Setting your goal weight is a great way to keep on track. We make that process easy by allowing you to set your goal weight, and we'll let you know your overall progress of reaching the weight. BMI: Accessing your BMI can really enlighten you to a particular category of where you stand in regards to your current weight. We offer this feature as a part of our premium upgrade. Notes: If you would like to add notes to a particular weight day for you to remember anything related to that particular day that you weighed in, we'll allow you to do this. We offer this feature as a part of our premium upgrade. We hope that we can have the privilege of being a part of your weight loss journey. Stay cool, and love yourself. You will get to where you're going if you never give up.

Screenshots

Weight Diary4 screens
Weight Log4 screens

Verdict

The call

Weight Diary and Weight Log both sit at 4.9 stars, but that hides the real split: 96% of Weight Diary's written reviews are positive against 43% of Weight Log's. Weight Diary also leads on in-app purchases (none vs 1) and ratings volume (2.6K vs 57). Weight Log's advantage is price (Free vs $7.99) and update cadence (every 2 months vs every 6 months). On rating, 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

Weight Log is free to download; Weight Diary costs $7.99 up front. Weight Log sells 1 one-off in-app purchase. Weight Diary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Weight Diary against 4.8 for Weight Log. That said, the two scores are not equally well evidenced: Weight Diary has 2.6K ratings behind it against 57, so its average is the more settled of the two. Written reviews are what separate them: 96% of Weight Diary's written reviews are positive against 43% of Weight Log's.

UpkeepUpdate frequency

Weight Diary ships an update every 6 months, Weight Log every 2 months. The most recent releases landed on September 30, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
Weight Diary versus Weight Log: the parameters behind the verdict, then further details
ParameterWeight DiaryWeight Log
Price$7.99Free — better
Rating4.9 (2.6K ratings) — better4.8 (57 ratings)
Positive reviews96.2% of reviews — better42.9% of reviews
Number of ratings2.6K — better57
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size11 MB1 MB
Age rating4+4+
DeveloperCURLYBRACE APPS LTDjustncode LLC

Customer experience

Weight Diary

All ratings2,592 ratings
Positive98.1%
Neutral1.2%
Negative0.7%
Written reviews526 reviews
Positive96.2%
Neutral2.3%
Negative1.5%

Weight Log

All ratings57 ratings
Positive94.7%
Neutral3.5%
Negative1.8%
Written reviews7 reviews
Positive42.9%
Neutral0.0%
Negative57.1%

In-app purchases

None

Weight Diary

No in-app purchases

1 purchases

Weight Log

One-time1
  • Weight Log Premium$4.99

Questions

Is Weight Diary free?
Weight Diary costs $7.99, with no in-app purchases.
Is Weight Log free?
Weight Log is free to download, with in-app purchases available.
Which has better reviews, Weight Diary or Weight Log?
Weight Diary is rated higher. Weight Diary averages 4.9 out of 5 from 2.6K ratings, while Weight Log averages 4.8 from 57 ratings.
Do Weight Diary or Weight Log have ads?
Neither Weight Diary nor Weight Log shows ads.
Which is updated more often, Weight Diary or Weight Log?
Weight Diary ships an update every 6 months, and Weight Log every 2 months. Most recently, Weight Diary was updated on September 30, 2026 and Weight Log on September 21, 2026.

Other comparisons