# Bodyfat Calculator 3 vs Simple Fasting Tracker

The clearest difference is review sentiment: Simple Fasting Tracker at 78% against Bodyfat Calculator 3's 25%. Simple Fasting Tracker also leads on rating (4.8 vs 3.9) and ratings volume (61 vs 7). Bodyfat Calculator 3's advantage is monetization model (free vs freemium) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Bodyfat Calculator 3 sells 1 one-off in-app purchase and Simple Fasting Tracker sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Simple Fasting Tracker holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Simple Fasting Tracker has 61 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 25% of Bodyfat Calculator 3's written reviews are positive against 78% of Simple Fasting Tracker's.

Bodyfat Calculator 3 ships an update every 3 weeks, Simple Fasting Tracker every 2 weeks. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Bodyfat Calculator 3 | Simple Fasting Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/bodyfat-calculator-3/id6473098021/reviews) | **[4.8 (61 ratings)](https://appshunter.io/ios/app/simple-fasting-tracker/id6739862459/reviews)** |
| Number of ratings | 7 | **61** |
| Positive reviews | 25.0% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 46 MB | 47 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Simon Burgess](https://appshunter.io/developer/960547111) | [Mamta Shah](https://appshunter.io/developer/1688127666) |

## What reviewers say

### Bodyfat Calculator 3

[App page](https://appshunter.io/ios/app/bodyfat-calculator-3/id6473098021)

Easily estimate your body fat percentage using simple measurements like waist circumference and weight. The app provides lean and fat mass values, BMI, and categorizes your body fat level. It supports multiple calculation methods and unit systems.

**Highlights:** Body fat percentage calculation, Lean and fat mass display, BMI and Waist to Height Ratio, Multiple calculation systems (RFM, YMCA, Army), Supports metric and imperial units, Real-time result updates, Multi-language support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Simple Fasting Tracker

[App page](https://appshunter.io/ios/app/simple-fasting-tracker/id6739862459)

Easily track your intermittent fasting journey with personalized schedules, goal setting, and progress monitoring. Syncs with Apple Watch and HealthKit for seamless data management. Offers detailed analytics to optimize your fasting.

**Highlights:** Quick fast logging, Customizable fasting schedules, Real-time progress tracking, Track weight and body fat, Personalized fasting analytics, Apple Watch and HealthKit sync, Widgets for quick access

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly- Intermittent fasting | $4.99 | per 7 days |
| Monthly - Intermittent fasting | $9.99 | per month |
| Year Promo - Fasting Tracker | $14.99 | per year |
| Yearly - Intermittent Fasting | $24.99 | per year |
| Yearly - Intermittent fasting | $24.99 | per year |
| Lifetime - Fasting Tracker | $49.99 | one-time |


## Frequently asked questions

### Is Bodyfat Calculator 3 free?

Bodyfat Calculator 3 is free to download, with in-app purchases available.

### Is Simple Fasting Tracker free?

Simple Fasting Tracker is free to download, with in-app purchases available.

### Which has better reviews, Bodyfat Calculator 3 or Simple Fasting Tracker?

Simple Fasting Tracker is rated higher. Bodyfat Calculator 3 averages 3.9 out of 5 from 7 ratings, while Simple Fasting Tracker averages 4.8 from 61 ratings.

### Do Bodyfat Calculator 3 or Simple Fasting Tracker have ads?

Neither Bodyfat Calculator 3 nor Simple Fasting Tracker shows ads.

### Which is updated more often, Bodyfat Calculator 3 or Simple Fasting Tracker?

Bodyfat Calculator 3 ships an update every 3 weeks, and Simple Fasting Tracker every 2 weeks. Most recently, Bodyfat Calculator 3 was updated on November 4, 2026 and Simple Fasting Tracker on November 8, 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.*