Comparison

UpDown vs Weight Diary

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

Head to head
About

UpDown

Track your weight journey with a comprehensive journal that supports multiple family profiles. Visualize progress with charts, calculate BMI, and set reminders. Syncs with Apple Watch and Health for seamless health monitoring.

Highlights
  • Weight journaling
  • Multiple user profiles
  • BMI calculation
  • Progress charts
  • Reminders
  • Apple Watch & Health support
  • CSV export
Features
Read full description

A convenient weight journal with profiles for the whole family and notes in the history. It helps you track changes over days, weeks, months, and years, and the visual progress charts provide extra motivation to improve your results. In addition, the app offers BMI calculations, goal tracking, Apple Watch and Health support, flexible reminder settings, history export to CSV, and automatic iCloud synchronization. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Policy: https://matrapas.github.io/privacy/

About

Weight Diary

Easily log your weight, body fat percentage, and nutrition to track progress towards your health goals. Visualize your journey with intuitive graphs and a calendar view, and customize the app to suit your needs. Share your progress with others and stay motivated.

Highlights
  • Log weight, body fat, nutrition, activity, and mood
  • Calendar view for daily logging overview
  • Graphs for weekly, monthly, and yearly progress
  • Customizable logging fields
  • Data import from other health apps
  • Password protection for privacy
  • Push notification reminders
Features
Read full description

'Weight Diary' is an app that allows you to easily log your weight and body fat percentage, calculate BMI, and track your progress by date. Keep logging consistently and reach your weight goals! Are you looking for a weight tracking app without complex features? Do you want to keep a log of your progress toward your diet goals? Do you want to manage your weight, body fat percentage, and BMI consistently? Do you want to measure if your bulk-up(weight gain) is going well? 'Weight Diary' is perfect for those who want to consistently track their body and nutrition. Features: ■ Log your weight, body fat percentage, nutrition, activity, and mood - Move the scale left and right to enter your weight easily. - Use cute emojis to express your nutrition and mood. - If you have done weight loss activities, you can add and enter activities such as 'swimming', 'jogging', and 'pilates'. - If you missed logging yesterday, you can move the date and log it. - If you entered the wrong weight, you can enter it again and overwrite it. - If you feel like there are too many things to log, you can hide everything except your weight in settings. ■ Understand what you have logged at a glance with a calendar - You can track if there are any dates that you missed logging at the calendar. - You can track how you felt and what you ate on a particular day. - You can share your weight calendar with your trainer or friends. ■ Manage your body and nutrition status with graphs - Watch the changes in your weight and body fat percentage on a weekly, monthly, and yearly basis. - Watch the statistics of your mood, nutrition, and activity for each period. - Measure if you are progressing well towards your weight, BMI, and body fat percentage goal. - You can share your weight graph with your trainer or friends. ■ Customize the app for your convenience - If your current height or weight goal has changed, you can re-enter it. - You can hide body fat percentage, activity, today's mood, and diet if you don't want to enter them. - You can receive push notifications to remind you of logging. - You can set a password for the app to protect your privacy. - Do you already have weight and body fat percentage data recorded in a health app? You can import the data into this app at any time and log it simultaneously. Keep logging your body & nutrition status and achieve your goals! We have prepared various features necessary for you to log your body & nutrition status. If you feel uncomfortable or need more features, please let us know in the app review! help+weightjournal@openrhapsody.com Privacy Policy: https://adrop.notion.site/studio-privacy Terms of Use (EULA): https://adrop.notion.site/studio-terms

Screenshots

UpDown4 screens
Weight Diary4 screens

Verdict

The call

The clearest difference is update cadence: Weight Diary at weekly against UpDown's every 4 weeks. Weight Diary also leads on review sentiment (96% vs 86%) and iOS requirement (15.0 vs 17.0). On price, rating, 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

Both are free to download. UpDown sells 3 in-app purchases, starting at $1.99 per month and Weight Diary sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Weight Diary holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 16 and 40 respectively. Written reviews point the same way: 86% of UpDown's written reviews are positive against 96% of Weight Diary's.

UpkeepUpdate frequency

UpDown ships an update every 4 weeks, Weight Diary weekly. The most recent releases landed on October 11, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 7 level
UpDown versus Weight Diary: the parameters behind the verdict, then further details
ParameterUpDownWeight Diary
PriceFreeFree
Rating4.4 (16 ratings)4.6 (40 ratings) — better
Positive reviews85.7% of reviews95.7% of reviews — better
Number of ratings1640 — better
Update frequencyEvery 4 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size4 MB102 MB
Age rating4+4+
DeveloperSergei IvanovOpenRhapsody

Customer experience

UpDown

All ratings16 ratings
Positive87.5%
Neutral6.3%
Negative6.3%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Weight Diary

All ratings36 ratings
Positive80.6%
Neutral13.9%
Negative5.6%
Written reviews23 reviews
Positive95.7%
Neutral0.0%
Negative4.3%

In-app purchases

3 purchases

UpDown

Subscriptions2
  • PRO Version (Monthly)$1.991 Month
  • PRO Version (Yearly)7 Days trial$14.991 Year
One-time1
  • PRO Version (Lifetime)$29.99
2 purchases

Weight Diary

Subscriptions2
  • Remove Ads (Monthly)$1.991 Month
  • Remove Ads (Yearly)$6.991 Year

Questions

Is UpDown free?
UpDown is free to download, with in-app purchases available.
Is Weight Diary free?
Weight Diary is free to download, with in-app purchases available.
Which has better reviews, UpDown or Weight Diary?
Weight Diary is rated higher. UpDown averages 4.4 out of 5 from 16 ratings, while Weight Diary averages 4.6 from 40 ratings.
Do UpDown or Weight Diary have ads?
Neither UpDown nor Weight Diary shows ads.
Which is updated more often, UpDown or Weight Diary?
UpDown ships an update every 4 weeks, and Weight Diary weekly. Most recently, UpDown was updated on October 11, 2026 and Weight Diary on October 21, 2026.

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