# Fat vs Metabolic Boost

The clearest difference is update cadence: Metabolic Boost at every 3 months against Fat's every 7 months. Fat's advantage is iOS requirement (10.2 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fat ships an update every 7 months, Metabolic Boost every 3 months. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Fat | Metabolic Boost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/fat-burning/id1317584722/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 18 MB | 213 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [MAKOTO SASAKI](https://appshunter.io/developer/908850577) | [Médérick Métro](https://appshunter.io/developer/1880670012) |

## What reviewers say

### Fat

[App page](https://appshunter.io/ios/app/fat-burning/id1317584722)

This app helps manage your health by tracking physical activity and nutrition. It monitors calorie burn, displays activity history, and allows manual input of various health metrics.

**Highlights:** Calorie combustion monitoring, Basal metabolism tracking, Activity calendar (3 months), Nutrition and body measurement logging, Calorie balance management

**In-app purchases:** none


### Metabolic Boost

[App page](https://appshunter.io/ios/app/metabolic-boost/id6759792390)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fat free?

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

### Is Metabolic Boost free?

Metabolic Boost is free to download, with no in-app purchases.

### Do Fat or Metabolic Boost have ads?

Neither Fat nor Metabolic Boost shows ads.

### Which is updated more often, Fat or Metabolic Boost?

Fat ships an update every 7 months, and Metabolic Boost every 3 months. Most recently, Fat was updated on October 14, 2026 and Metabolic Boost on October 28, 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.*