# 颠倒思维 vs 亮丽证件照

The clearest difference is in-app purchases: 颠倒思维 at none against 亮丽证件照's 3. 亮丽证件照's advantage is iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. 亮丽证件照 sells 3 in-app purchases, starting at $3.99 per month. 颠倒思维 asks for nothing beyond the download.

## The numbers

| Metric | 颠倒思维 | 亮丽证件照 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 14 MB | 22 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [睿 徐](https://appshunter.io/developer/1214823828) | [培芬 侯](https://appshunter.io/developer/1722885962) |

## What reviewers say

### 颠倒思维

[App page](https://appshunter.io/ios/app/id1536520485)

**Features:** macOS Compatibility

**In-app purchases:** none


### 亮丽证件照

[App page](https://appshunter.io/ios/app/id6478512922)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $3.99 | per month |
| 年度会员 | $29.99 | per year |
| 高清证件照 | $0.99 | one-time |


## Frequently asked questions

### Is 颠倒思维 free?

颠倒思维 is free to download, with no in-app purchases.

### Is 亮丽证件照 free?

亮丽证件照 is free to download, with in-app purchases available.

### Do 颠倒思维 or 亮丽证件照 have ads?

Neither 颠倒思维 nor 亮丽证件照 shows ads.

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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.*