# WhyAI vs OC幻境

The clearest difference is update cadence: OC幻境 at every 2 days against WhyAI's weekly. OC幻境 also leads on iOS requirement (13.0 vs 16.6). 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.

WhyAI ships an update weekly, OC幻境 every 2 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | WhyAI | OC幻境 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/whyai/id6760045787/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free | — |
| Size | 16 MB | 38 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Huaijin Zhu](https://appshunter.io/developer/1872561999) | [Beijing Xuduo Technology Consulting Co., Ltd.](https://appshunter.io/developer/1875789951) |

## What reviewers say

### WhyAI

[App page](https://appshunter.io/ios/app/whyai/id6760045787)

Engage in AI-powered conversations with custom virtual characters. Define their personalities and backgrounds for creative writing or entertainment. Supports one-on-one and group chat formats.

**Highlights:** AI-powered character conversations, Create and customize virtual characters, Define character backgrounds and personalities, One-on-one and group chat formats, Creative writing assistance, Character development tool

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

**In-app purchases:** none


### OC幻境

[App page](https://appshunter.io/ios/app/oc/id6775835337)

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

**In-app purchases:** none


## Frequently asked questions

### Is WhyAI free?

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

### Is OC幻境 free?

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

### Do WhyAI or OC幻境 have ads?

Neither WhyAI nor OC幻境 shows ads.

### Which is updated more often, WhyAI or OC幻境?

WhyAI ships an update weekly, and OC幻境 every 2 days. Most recently, WhyAI was updated on October 31, 2026 and OC幻境 on October 28, 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.*