# Readify vs Gemology Notes

The clearest difference is in-app purchases: Gemology Notes at none against Readify's 2. Gemology Notes also leads on update cadence (every 4 days vs every 4 weeks). Readify's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Readify sells 2 in-app purchases, starting at $0.99 per month. Gemology Notes asks for nothing beyond the download.

Readify ships an update every 4 weeks, Gemology Notes every 4 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Readify | Gemology Notes |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | — | Paid |
| Size | 114 MB | 31 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Charles Abetz](https://appshunter.io/developer/1502690178) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### Readify

[App page](https://appshunter.io/ios/app/readify/id6478643928)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Australia | $0.99 | per month |
| Australia Subscription | $12.99 | per year |


### 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 Readify free?

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

### Is Gemology Notes free?

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

### Do Readify or Gemology Notes have ads?

Neither Readify nor Gemology Notes shows ads.

### Which is updated more often, Readify or Gemology Notes?

Readify ships an update every 4 weeks, and Gemology Notes every 4 days. Most recently, Readify was updated on November 4, 2026 and Gemology Notes on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*