# 米信校园版 vs Gemology Notes

The clearest difference is update cadence: Gemology Notes at every 4 days against 米信校园版's every 3 weeks. 米信校园版's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

米信校园版 ships an update every 3 weeks, Gemology Notes every 4 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 米信校园版 | Gemology Notes |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Paid |
| Size | 74 MB | 31 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [波 刘](https://appshunter.io/developer/844032719) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### 米信校园版

[App page](https://appshunter.io/ios/app/id922360827)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gemology Notes

[App page](https://appshunter.io/ios/app/gemology-notes/id6797660418)

An offline reference app for gemology students and professionals. Explore gemstone properties, crystal structures with interactive 3D models, and detailed identification points. Study gemology anywhere without an internet connection.

**Highlights:** Gemstone Browser, 3D Crystal Models, Detailed Gemstone Notes, Offline Access, Systematic Classification

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 米信校园版 free?

米信校园版 is free to download, with no in-app purchases.

### Is Gemology Notes free?

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

### Do 米信校园版 or Gemology Notes have ads?

Neither 米信校园版 nor Gemology Notes shows ads.

### Which is updated more often, 米信校园版 or Gemology Notes?

米信校园版 ships an update every 3 weeks, and Gemology Notes every 4 days. Most recently, 米信校园版 was updated on October 7, 2026 and Gemology Notes on October 11, 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.*