# G码印章 vs ColorDiaryApp

The clearest difference is in-app purchases: G码印章 at none against ColorDiaryApp's 1. G码印章 also leads on iOS requirement (13.0 vs 26.0). ColorDiaryApp's advantage is update cadence (every 8 days vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ColorDiaryApp sells 1 one-off in-app purchase. G码印章 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for G码印章 against 5.0 for ColorDiaryApp. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

G码印章 ships an update every 2 months, ColorDiaryApp every 8 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | G码印章 | ColorDiaryApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/g/id1008700014/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/colordiaryapp/id6759371114/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 44 MB | 16 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Tongjin Digital Printing Technology Co., Ltd.](https://appshunter.io/developer/1008700013) | [Daishin Ueyama](https://appshunter.io/developer/495395197) |

## 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


### ColorDiaryApp

[App page](https://appshunter.io/ios/app/colordiaryapp/id6759371114)

A simple mood journal that lets you record your day with a single color. Over time, your entries form a colorful mosaic, revealing patterns at a glance. Add optional memos and enjoy privacy with local data storage.

**Highlights:** One color per day mood recording, Visual color mosaic for mood reflection, On-device Color Review, Home screen widget, Optional memos up to 800 characters, Data export and import, Daily reminder notifications

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate a cup of coffee. | $0.99 | 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 ColorDiaryApp free?

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

### Which has better reviews, G码印章 or ColorDiaryApp?

G码印章 and ColorDiaryApp are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do G码印章 or ColorDiaryApp have ads?

Neither G码印章 nor ColorDiaryApp shows ads.

### Which is updated more often, G码印章 or ColorDiaryApp?

G码印章 ships an update every 2 months, and ColorDiaryApp every 8 days. Most recently, G码印章 was updated on October 20, 2026 and ColorDiaryApp 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.*