# 遺伝子博士ダイエット vs LEAN BODY

The clearest difference is review sentiment: LEAN BODY at 56% against 遺伝子博士ダイエット's 3%. LEAN BODY also leads on rating (5.0 vs 1.9) and update cadence (weekly vs every 6 weeks). 遺伝子博士ダイエット's advantage is in-app purchases (none vs 6) and ratings volume (83 vs 3). On price, ads and device support there is nothing between them.

Both are free to download. LEAN BODY sells 4 in-app purchases, starting at $17.99 per month. 遺伝子博士ダイエット asks for nothing beyond the download.

LEAN BODY holds the better App Store score, 5.0 against 1.9. That said, the two scores are not equally well evidenced: 遺伝子博士ダイエット has 83 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 3% of 遺伝子博士ダイエット's written reviews are positive against 56% of LEAN BODY's.

遺伝子博士ダイエット ships an update every 6 weeks, LEAN BODY weekly. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 遺伝子博士ダイエット | LEAN BODY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (83 ratings)](https://appshunter.io/ios/app/id1075242564/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lean-body/id1494415297/reviews)** |
| Number of ratings | **83** | 3 |
| Positive reviews | 3.2% of reviews | **55.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 192 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Campingcar Inc.](https://appshunter.io/developer/1435272854) | [LEAN BODY Inc.](https://appshunter.io/developer/1494415296) |

## What reviewers say

### 遺伝子博士ダイエット

[App page](https://appshunter.io/ios/app/id1075242564)

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

**In-app purchases:** none


### LEAN BODY

[App page](https://appshunter.io/ios/app/lean-body/id1494415297)

Access over 1,000 on-demand and live fitness classes from home, including yoga, pilates, and dance. AI-powered recommendations and progress tracking help you stay motivated and achieve your health goals.

**Highlights:** 1,000+ on-demand video lessons, Live fitness classes with chat, AI-powered personalized lesson recommendations, Diet and calorie tracking, Progress recording and badges, Seamless health device integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン(トライアル2週間) | $17.99 | per month |
| 3ヶ月プラン(トライアル2週間) | $54.99 | per 3 months |
| 12ヶ月プラン(トライアル2週間) | $129.99 | per year |
| 12ヶ月プラン | $129.99 | per year |


## Frequently asked questions

### Is 遺伝子博士ダイエット free?

遺伝子博士ダイエット is free to download, with no in-app purchases.

### Is LEAN BODY free?

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

### Which has better reviews, 遺伝子博士ダイエット or LEAN BODY?

LEAN BODY is rated higher. 遺伝子博士ダイエット averages 1.9 out of 5 from 83 ratings, while LEAN BODY averages 5.0 from 3 ratings.

### Do 遺伝子博士ダイエット or LEAN BODY have ads?

Neither 遺伝子博士ダイエット nor LEAN BODY shows ads.

### Which is updated more often, 遺伝子博士ダイエット or LEAN BODY?

遺伝子博士ダイエット ships an update every 6 weeks, and LEAN BODY weekly. Most recently, 遺伝子博士ダイエット was updated on October 14, 2026 and LEAN BODY on October 12, 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.*