# 灰镜 vs bubu oc

The clearest difference is in-app purchases: 灰镜 at none against bubu oc's 3. bubu oc's advantage is update cadence (every 3 weeks vs every 7 months) and device support. On price and iOS requirement there is nothing between them.

Both are free to download. bubu oc sells 3 in-app purchases, starting at $0.99 per month. 灰镜 asks for nothing beyond the download.

灰镜 ships an update every 7 months, bubu oc every 3 weeks. The most recent releases landed on May 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 灰镜 | bubu oc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/bubu-oc/id6741865023/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 57 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Shanghai Grey Mirror Culture Media Co., Ltd](https://appshunter.io/developer/1752426911) | [佳纯 郑](https://appshunter.io/developer/1692146186) |

## What reviewers say

### 灰镜

[App page](https://appshunter.io/ios/app/id6504545494)

**In-app purchases:** none


### bubu oc

[App page](https://appshunter.io/ios/app/bubu-oc/id6741865023)

This app helps creators, writers, and role-playing enthusiasts build and manage original characters and world settings. It offers tools for detailed worldbuilding, character creation, visualizing relationships, and balancing attributes with radar charts.

**Highlights:** Worldbuilding tools, Character creation and editing, Relationship visualization, Attribute radar charts, Manage original characters, Refine world settings

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annual | $6.99 | per year |
| Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is 灰镜 free?

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

### Is bubu oc free?

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

### Which is updated more often, 灰镜 or bubu oc?

灰镜 ships an update every 7 months, and bubu oc every 3 weeks. Most recently, 灰镜 was updated on May 18, 2026 and bubu oc on September 8, 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.*