# RAYZZ vs YiY

The clearest difference is in-app purchases: RAYZZ at none against YiY's 1. YiY's advantage is update cadence (daily vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. YiY sells 1 one-off in-app purchase. RAYZZ asks for nothing beyond the download.

RAYZZ ships an update monthly, YiY daily. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | RAYZZ | YiY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 18 MB | 7 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Ruikeqi Technology Co., Ltd.](https://appshunter.io/developer/1831222126) | [俊杰 卢](https://appshunter.io/developer/1781580043) |

## What reviewers say

### RAYZZ

[App page](https://appshunter.io/ios/app/rayzz/id6749572321)

**Features:** macOS Compatibility

**In-app purchases:** none


### YiY

[App page](https://appshunter.io/ios/app/yiy/id6756804102)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久有效会员 | $0.99 | one-time |


## Frequently asked questions

### Is RAYZZ free?

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

### Is YiY free?

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

### Do RAYZZ or YiY have ads?

Neither RAYZZ nor YiY shows ads.

### Which is updated more often, RAYZZ or YiY?

RAYZZ ships an update monthly, and YiY daily. Most recently, RAYZZ was updated on October 24, 2026 and YiY on October 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.*