# Lean vs UOIN

The clearest difference is device support: Lean at 4 against UOIN's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Lean sells 1 one-off in-app purchase and UOIN sells 2 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.

Lean ships an update monthly, UOIN every 3 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Lean | UOIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (65 ratings)](https://appshunter.io/ios/app/lean/id1435069659/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 89.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 120 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [家浩 汪](https://appshunter.io/developer/1071202242) | [Shenzhen Aiyou Digital Intelligence Co., Ltd.](https://appshunter.io/developer/1590480226) |

## What reviewers say

### Lean

[App page](https://appshunter.io/ios/app/lean/id1435069659)

This app uses motion sensors to count repetitions and track time for bodyweight exercises. Create custom workout plans and sync data with Apple Health.

**Highlights:** Repetition counter, Bodyweight exercise library, Custom workout plans, Voice tips, Workout and calorie tracking, Apple HealthKit integration

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $5.99 | one-time |


### UOIN

[App page](https://appshunter.io/ios/app/uoin/id1590480224)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 哑铃课程VIP | $4.49 | per month |
| 哑铃课程VIP 高能燃脂健身 | $3.99 | one-time |


## Frequently asked questions

### Is Lean free?

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

### Is UOIN free?

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

### Do Lean or UOIN have ads?

Neither Lean nor UOIN shows ads.

### Which is updated more often, Lean or UOIN?

Lean ships an update monthly, and UOIN every 3 weeks. Most recently, Lean was updated on October 13, 2026 and UOIN on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*