# やせるぞう vs Weight Diet Log

The clearest difference is in-app purchases: やせるぞう at none against Weight Diet Log's 1. やせるぞう also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Weight Diet Log sells 1 one-off in-app purchase. やせるぞう asks for nothing beyond the download.

やせるぞう ships an update weekly, Weight Diet Log every 2 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | やせるぞう | Weight Diet Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Size | 29 MB | 7 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuichi Kitajima](https://appshunter.io/developer/1841654164) | [Ryosuke Yamamoto](https://appshunter.io/developer/1689166532) |

## What reviewers say

### やせるぞう

[App page](https://appshunter.io/ios/app/id6762079865)

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

**In-app purchases:** none


### Weight Diet Log

[App page](https://appshunter.io/ios/app/weight-diet-log/id6775499025)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weight Diet Log Premium | $3.99 | one-time |


## Frequently asked questions

### Is やせるぞう free?

やせるぞう is free to download, with no in-app purchases.

### Is Weight Diet Log free?

Weight Diet Log is free to download, with in-app purchases available.

### Do やせるぞう or Weight Diet Log have ads?

Weight Diet Log shows ads; やせるぞう does not.

### Which is updated more often, やせるぞう or Weight Diet Log?

やせるぞう ships an update weekly, and Weight Diet Log every 2 months. Most recently, やせるぞう was updated on October 28, 2026 and Weight Diet Log 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.*