# BMI Diary vs BMI

The clearest difference is review sentiment: BMI Diary at 75% against BMI's 0%. BMI Diary also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (12.0 vs 16). BMI's advantage is rating (4.9 vs 4.1) and ratings volume (56 vs 7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. BMI Diary 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 4.1. That said, the two scores are not equally well evidenced: BMI has 56 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 75% of BMI Diary'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.

BMI Diary ships an update every 3 weeks, BMI every 6 months. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | BMI Diary | BMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (7 ratings)](https://appshunter.io/ios/app/bmi-diary-bmi-calculator/id1521281509/reviews) | **[4.9 (56 ratings)](https://appshunter.io/ios/app/bmi-weight-loss-tracker/id1524251347/reviews)** |
| Number of ratings | 7 | **56** |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 7 MB |
| Requires iOS | **12.0** | 16 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [An Banh](https://appshunter.io/developer/1466900439) |

## What reviewers say

### BMI Diary

[App page](https://appshunter.io/ios/app/bmi-diary-bmi-calculator/id1521281509)

Track your Body Mass Index (BMI) daily to manage weight and health effectively. Visualize your BMI trends in real-time to monitor progress. This tool is ideal for those focused on weight loss or bodybuilding.

**Highlights:** Daily BMI calculation, Save BMI values, Visualize BMI trends, Weight management, Health monitoring

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads forever | $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 BMI Diary free?

BMI Diary 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, BMI Diary or BMI?

BMI is rated higher. BMI Diary averages 4.1 out of 5 from 7 ratings, while BMI averages 4.9 from 56 ratings.

### Do BMI Diary or BMI have ads?

Both BMI Diary and BMI show ads.

### Which is updated more often, BMI Diary or BMI?

BMI Diary ships an update every 3 weeks, and BMI every 6 months. Most recently, BMI Diary was updated on October 24, 2026 and BMI on October 14, 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.*