# AIERQUN vs Rainy AI

The clearest difference is update cadence: Rainy AI at every 5 days against AIERQUN's every 22 months. AIERQUN's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

AIERQUN ships an update every 22 months, Rainy AI every 5 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AIERQUN | Rainy AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 5 days** |
| Size | 194 MB | 846 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [Chao Yi Chen](https://appshunter.io/developer/1809452800) |

## What reviewers say

### AIERQUN

[App page](https://appshunter.io/ios/app/aierqun/id1633587744)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rainy AI

[App page](https://appshunter.io/ios/app/rainy-ai/id6753078426)

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

**In-app purchases:** none


## Frequently asked questions

### Is AIERQUN free?

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

### Is Rainy AI free?

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

### Do AIERQUN or Rainy AI have ads?

Neither AIERQUN nor Rainy AI shows ads.

### Which is updated more often, AIERQUN or Rainy AI?

AIERQUN ships an update every 22 months, and Rainy AI every 5 days. Most recently, AIERQUN was updated on October 25, 2026 and Rainy AI on October 14, 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.*