# Fat vs ScanShift

The clearest difference is in-app purchases: Fat at none against ScanShift's 2. Fat also leads on iOS requirement (10.2 vs 15.0). ScanShift's advantage is update cadence (every 4 days vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. ScanShift sells 2 in-app purchases, starting at $3.99 per 7 days. Fat asks for nothing beyond the download.

Fat ships an update every 7 months, ScanShift every 4 days. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Fat | ScanShift |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 18 MB | 12 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [MAKOTO SASAKI](https://appshunter.io/developer/908850577) | [SOTAIFEANYI NWAFOR](https://appshunter.io/developer/1877017570) |

## 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


### ScanShift

[App page](https://appshunter.io/ios/app/scanshift/id6761873538)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScanShift Premium Weekly | $3.99 | per 7 days |
| ScanShift Premium Monthly | $9.99 | per month |


## Frequently asked questions

### Is Fat free?

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

### Is ScanShift free?

ScanShift is free to download, with in-app purchases available.

### Do Fat or ScanShift have ads?

Neither Fat nor ScanShift shows ads.

### Which is updated more often, Fat or ScanShift?

Fat ships an update every 7 months, and ScanShift every 4 days. Most recently, Fat was updated on September 29, 2026 and ScanShift on October 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.*