# Weight Chart vs WatchBMI

The clearest difference is update cadence: WatchBMI at daily against Weight Chart's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Weight Chart costs $0.99 and WatchBMI $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Weight Chart ships an update every 6 months, WatchBMI daily. The most recent releases landed on September 4, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Weight Chart | WatchBMI |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/weight-chart/id392667855/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Monetization | Paid | — |
| Size | 2 MB | 0 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [James Nachbar](https://appshunter.io/developer/1755655828) |

## What reviewers say

### Weight Chart

[App page](https://appshunter.io/ios/app/weight-chart/id392667855)

Track your weight and waist circumference with this app. It visualizes your progress on charts and helps you understand health risks associated with waist-to-height ratio, offering a more accurate measure than BMI.

**Highlights:** Monitor weight and waist circumference, Visualize progress with charts, Calculate waist-to-height ratio, Enter and edit data for any date, Email data for backup, Switch between metric and imperial units

**Features:** macOS Compatibility

**In-app purchases:** none


### WatchBMI

[App page](https://appshunter.io/ios/app/watchbmi/id6514276372)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Weight Chart free?

Weight Chart costs $0.99, with no in-app purchases.

### Is WatchBMI free?

WatchBMI costs $0.99, with no in-app purchases.

### Do Weight Chart or WatchBMI have ads?

Neither Weight Chart nor WatchBMI shows ads.

### Which is updated more often, Weight Chart or WatchBMI?

Weight Chart ships an update every 6 months, and WatchBMI daily. Most recently, Weight Chart was updated on September 4, 2026 and WatchBMI on September 6, 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.*