# 关关 vs Piczo

The clearest difference is in-app purchases: 关关 at none against Piczo's 1. On price, update cadence, ads and device support there is nothing between them.

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

关关 ships an update every 2 days, Piczo daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | 关关 | Piczo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/piczo/id6816739049/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Size | 28 MB | 271 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [畅 张](https://appshunter.io/developer/6815072077) | [腾飞 师](https://appshunter.io/developer/987366237) |

## What reviewers say

### 关关

[App page](https://appshunter.io/ios/app/id6815084400)

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

**In-app purchases:** none


### Piczo

[App page](https://appshunter.io/ios/app/piczo/id6816739049)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Piczo Lifetime Pro | $9.90 | one-time |


## Frequently asked questions

### Is 关关 free?

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

### Is Piczo free?

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

### Do 关关 or Piczo have ads?

Neither 关关 nor Piczo shows ads.

### Which is updated more often, 关关 or Piczo?

关关 ships an update every 2 days, and Piczo daily. Most recently, 关关 was updated on October 24, 2026 and Piczo on October 24, 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.*