# UpDown vs Weight Diary

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.

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.

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.

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

## The numbers

| Metric | UpDown | Weight Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (16 ratings)](https://appshunter.io/ios/app/updown-weight-tracker/id1167706233/reviews) | **[4.6 (40 ratings)](https://appshunter.io/ios/app/weight-diary-bmi-calculator/id1665619257/reviews)** |
| Number of ratings | 16 | **40** |
| Positive reviews | 85.7% of reviews | **95.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 4 MB | 102 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergei Ivanov](https://appshunter.io/developer/932468091) | [OpenRhapsody](https://appshunter.io/developer/1648611308) |

## What reviewers say

### UpDown

[App page](https://appshunter.io/ios/app/updown-weight-tracker/id1167706233)

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:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (Monthly) | $1.99 | per month |
| PRO Version (Yearly) | $14.99 | per year |
| PRO Version (Lifetime) | $29.99 | one-time |


### Weight Diary

[App page](https://appshunter.io/ios/app/weight-diary-bmi-calculator/id1665619257)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $1.99 | per month |
| Remove Ads (Yearly) | $6.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*