# 重工乐跑 vs Lean · 薄肌

The clearest difference is in-app purchases: 重工乐跑 at none against Lean · 薄肌's 2. 重工乐跑 also leads on update cadence (every 4 days vs every 2 weeks) and iOS requirement (9.0 vs 18.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Lean · 薄肌 sells 2 in-app purchases, starting at $4.99 per month. 重工乐跑 asks for nothing beyond the download.

重工乐跑 ships an update every 4 days, Lean · 薄肌 every 2 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 重工乐跑 | Lean · 薄肌 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **5.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 27 MB | 38 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [重庆市璀恩斯科技有限公司](https://appshunter.io/developer/1411853376) | [海圆 马](https://appshunter.io/developer/1896405198) |

## What reviewers say

### 重工乐跑

[App page](https://appshunter.io/ios/app/id1559234899)

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

**In-app purchases:** none


### Lean · 薄肌

[App page](https://appshunter.io/ios/app/lean/id6767283263)

Track workouts, nutrition, and sleep to see your progress. Features on-device camera analysis for exercises and optional AI coaching for personalized plans. Earn playful fitness degrees and share achievements.

**Highlights:** Log sets, reps, weights, RPE, and cardio, Track nutrition, water, and sleep, On-device exercise analysis with camera, Personal records and muscle coverage review, Optional AI coaching for plans and reviews, Shareable fitness achievements and certificates

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LumaFit Pro Monthly | $4.99 | per month |
| LumaFit Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is 重工乐跑 free?

重工乐跑 is free to download, with no in-app purchases.

### Is Lean · 薄肌 free?

Lean · 薄肌 is free to download, with in-app purchases available.

### Do 重工乐跑 or Lean · 薄肌 have ads?

Neither 重工乐跑 nor Lean · 薄肌 shows ads.

### Which is updated more often, 重工乐跑 or Lean · 薄肌?

重工乐跑 ships an update every 4 days, and Lean · 薄肌 every 2 weeks. Most recently, 重工乐跑 was updated on November 11, 2026 and Lean · 薄肌 on November 5, 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.*