# BMI Calculator vs Weight Diary BMI Tracker Log

The clearest difference is in-app purchases: BMI Calculator at none against Weight Diary BMI Tracker Log's 1. BMI Calculator also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Weight Diary BMI Tracker Log sells 1 one-off in-app purchase. BMI Calculator asks for nothing beyond the download.

BMI Calculator ships an update monthly, Weight Diary BMI Tracker Log every 2 weeks. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BMI Calculator | Weight Diary BMI Tracker Log |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 28 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [东申 王](https://appshunter.io/developer/1658475058) | [SnowdropSoft](https://appshunter.io/developer/1541796403) |

## What reviewers say

### BMI Calculator

[App page](https://appshunter.io/ios/app/bmi-calculator-weight-analyze/id6502627077)

Easily calculate your Body Mass Index (BMI) and track your health over time. This app provides instant BMI results, records historical data, and offers analysis of other health indicators like body fat rate and basal metabolic rate.

**Highlights:** Instant BMI calculation, Historical data recording, Health index analysis (body fat, BMR), User-friendly interface, Multi-language support, Privacy protection

**Features:** macOS Compatibility

**In-app purchases:** none


### Weight Diary BMI Tracker Log

[App page](https://appshunter.io/ios/app/weight-diary-bmi-tracker-log/id6744991928)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is BMI Calculator free?

BMI Calculator is free to download, with no in-app purchases.

### Is Weight Diary BMI Tracker Log free?

Weight Diary BMI Tracker Log is free to download, with in-app purchases available.

### Do BMI Calculator or Weight Diary BMI Tracker Log have ads?

Weight Diary BMI Tracker Log shows ads; BMI Calculator does not.

### Which is updated more often, BMI Calculator or Weight Diary BMI Tracker Log?

BMI Calculator ships an update monthly, and Weight Diary BMI Tracker Log every 2 weeks. Most recently, BMI Calculator was updated on October 19, 2026 and Weight Diary BMI Tracker Log on October 25, 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.*