# Yum Stack vs Harem Promotion

The clearest difference is iOS requirement: Yum Stack at 13.0 against Harem Promotion's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Yum Stack ships an update every 10 days, Harem Promotion weekly. The most recent releases landed on September 11, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Yum Stack | Harem Promotion |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Weekly** |
| Size | 97 MB | 59 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SHICHUANGRUN CO.,LIMITED](https://appshunter.io/developer/1813093838) | [YINGNAN XU](https://appshunter.io/developer/1504214012) |

## What reviewers say

### Yum Stack

[App page](https://appshunter.io/ios/app/yum-stack/id6747810389)

**Features:** macOS Compatibility

**In-app purchases:** none


### Harem Promotion

[App page](https://appshunter.io/ios/app/harem-promotion/id6773756175)

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

**In-app purchases:** none


## Frequently asked questions

### Is Yum Stack free?

Yum Stack is free to download, with no in-app purchases.

### Is Harem Promotion free?

Harem Promotion is free to download, with no in-app purchases.

### Do Yum Stack or Harem Promotion have ads?

Both Yum Stack and Harem Promotion show ads.

### Which is updated more often, Yum Stack or Harem Promotion?

Yum Stack ships an update every 10 days, and Harem Promotion weekly. Most recently, Yum Stack was updated on September 11, 2026 and Harem Promotion on September 18, 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.*