# G码印章 vs 快乐哪吒

The clearest difference is in-app purchases: G码印章 at none against 快乐哪吒's 4. G码印章 also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). 快乐哪吒's advantage is update cadence (every 10 days vs monthly). On price and device support there is nothing between them.

Both are free to download. 快乐哪吒 sells 4 one-off in-app purchases. G码印章 asks for nothing beyond the download.

G码印章 ships an update monthly, 快乐哪吒 every 10 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | G码印章 | 快乐哪吒 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/g/id1008700014/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free | — |
| Size | 46 MB | 302 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Chengdu Tongjin Digital Printing Technology Co., Ltd.](https://appshunter.io/developer/1008700013) | [昱泽 卢](https://appshunter.io/developer/1547073368) |

## What reviewers say

### G码印章

[App page](https://appshunter.io/ios/app/g/id1008700014)

This app allows users to scan G-coded stamps to verify the legitimacy of stamp usage, including authorization details and other relevant information. It helps confirm the intended purpose of the stamp by the holder.

**Highlights:** Scan G-coded stamps, Verify stamp holder authorization, Confirm stamp usage purpose, View related content

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

**In-app purchases:** none


### 快乐哪吒

[App page](https://appshunter.io/ios/app/id6670599090)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 70个能量币 | $0.99 | one-time |
| 350个能量币 | $6.99 | one-time |
| 1120个能量币 | $22.99 | one-time |
| 1960个能量币 | $39.99 | one-time |


## Frequently asked questions

### Is G码印章 free?

G码印章 is free to download, with no in-app purchases.

### Is 快乐哪吒 free?

快乐哪吒 is free to download, with in-app purchases available.

### Do G码印章 or 快乐哪吒 have ads?

快乐哪吒 shows ads; G码印章 does not.

### Which is updated more often, G码印章 or 快乐哪吒?

G码印章 ships an update monthly, and 快乐哪吒 every 10 days. Most recently, G码印章 was updated on October 3, 2026 and 快乐哪吒 on October 3, 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.*