# Watch Weight vs BMI

The clearest difference is review sentiment: Watch Weight at 47% against BMI's 0%. Watch Weight also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). BMI's advantage is rating (4.9 vs 4.2). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Watch Weight sells 1 one-off in-app purchase and BMI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

BMI holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 45 and 56 respectively. Written reviews complicate that: 47% of Watch Weight's written reviews are positive against 0% of BMI's, so the app with the better star average is not the one people write more warmly about.

Watch Weight ships an update every 4 months, BMI every 6 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Watch Weight | BMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (45 ratings)](https://appshunter.io/ios/app/watch-weight-daily-tracker/id894352882/reviews) | **[4.9 (56 ratings)](https://appshunter.io/ios/app/bmi-weight-loss-tracker/id1524251347/reviews)** |
| Number of ratings | 45 | **56** |
| Positive reviews | **46.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 7 MB |
| Requires iOS | 17.0 | **16** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yogasoft Applications](https://appshunter.io/developer/827568900) | [An Banh](https://appshunter.io/developer/1466900439) |

## What reviewers say

### Watch Weight

[App page](https://appshunter.io/ios/app/watch-weight-daily-tracker/id894352882)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Weight Premium | $0.99 | one-time |


### BMI

[App page](https://appshunter.io/ios/app/bmi-weight-loss-tracker/id1524251347)

Easily calculate your Body Mass Index (BMI) and track your weight over time. Monitor your progress towards your health goals with this straightforward tool.

**Highlights:** BMI calculation, Weight tracking, Progress monitoring, Health goal support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Pro Version | $1.99 | one-time |


## Frequently asked questions

### Is Watch Weight free?

Watch Weight is free to download, with in-app purchases available.

### Is BMI free?

BMI is free to download, with in-app purchases available.

### Which has better reviews, Watch Weight or BMI?

BMI is rated higher. Watch Weight averages 4.2 out of 5 from 45 ratings, while BMI averages 4.9 from 56 ratings.

### Do Watch Weight or BMI have ads?

BMI shows ads; Watch Weight does not.

### Which is updated more often, Watch Weight or BMI?

Watch Weight ships an update every 4 months, and BMI every 6 months. Most recently, Watch Weight was updated on November 1, 2026 and BMI on October 29, 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.*