# Rhythm vs 萌芽sprout

The clearest difference is in-app purchases: 萌芽sprout at none against Rhythm's 2. 萌芽sprout also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rhythm sells 2 in-app purchases, starting at $9.99 per year. 萌芽sprout asks for nothing beyond the download.

Rhythm ships an update every 3 weeks, 萌芽sprout every 5 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Rhythm | 萌芽sprout |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 9 MB | 24 MB |
| Requires iOS | 17.1 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [阳 孙](https://appshunter.io/developer/1518808403) | [勐 李](https://appshunter.io/developer/6781100046) |

## What reviewers say

### Rhythm

[App page](https://appshunter.io/ios/app/rhythm-semen-retention/id6759880730)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| T_Score_Pro_Yearly | $9.99 | per year |
| T-Score-Pro | $29.99 | one-time |


### 萌芽sprout

[App page](https://appshunter.io/ios/app/sprout/id6782820368)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rhythm free?

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

### Is 萌芽sprout free?

萌芽sprout is free to download, with no in-app purchases.

### Do Rhythm or 萌芽sprout have ads?

Neither Rhythm nor 萌芽sprout shows ads.

### Which is updated more often, Rhythm or 萌芽sprout?

Rhythm ships an update every 3 weeks, and 萌芽sprout every 5 days. Most recently, Rhythm was updated on November 9, 2026 and 萌芽sprout on October 31, 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.*