# WTFat vs Body Temperature Weight record

The clearest difference is price: Body Temperature Weight record at Free against WTFat's $1.99. WTFat's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Body Temperature Weight record is free to download; WTFat costs $1.99 up front. Body Temperature Weight record sells 1 in-app purchase, starting at $0.99 per month. WTFat asks for nothing beyond the download.

WTFat ships an update every 4 months, Body Temperature Weight record every 3 months. The most recent releases landed on May 16, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | WTFat | Body Temperature Weight record |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 5 MB | 5 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [yukihiro fujita](https://appshunter.io/developer/537078708) | [YUTAKA IZUMIYAMA](https://appshunter.io/developer/1657248429) |

## What reviewers say

### WTFat

[App page](https://appshunter.io/ios/app/wtfat-with-physics-engine/id596216671)

**Features:** macOS Compatibility

**In-app purchases:** none


### Body Temperature Weight record

[App page](https://appshunter.io/ios/app/body-temperature-weight-record/id6747359709)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free (1 Month) | $0.99 | per month |


## Frequently asked questions

### Is WTFat free?

WTFat costs $1.99, with no in-app purchases.

### Is Body Temperature Weight record free?

Body Temperature Weight record is free to download, with in-app purchases available.

### Do WTFat or Body Temperature Weight record have ads?

Body Temperature Weight record shows ads; WTFat does not.

### Which is updated more often, WTFat or Body Temperature Weight record?

WTFat ships an update every 4 months, and Body Temperature Weight record every 3 months. Most recently, WTFat was updated on May 16, 2026 and Body Temperature Weight record on October 23, 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.*