# Kateit! vs Gem Identifier & Rock ID

The clearest difference is in-app purchases: Kateit! at none against Gem Identifier & Rock ID's 5. Kateit! also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. Gem Identifier & Rock ID sells 5 in-app purchases, starting at $6.99 per 7 days. Kateit! asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Kateit! | Gem Identifier & Rock ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (24 ratings)](https://appshunter.io/ios/app/gem-identifier-and-rock-id/id6748907151/reviews)** |
| Number of ratings | — | **24** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 36 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Katarzyna Cielecka-Sojka](https://appshunter.io/developer/1636560721) | [Innotent LTD](https://appshunter.io/developer/1695717745) |

## What reviewers say

### Kateit!

[App page](https://appshunter.io/ios/app/kateit/id1472517279)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gem Identifier & Rock ID

[App page](https://appshunter.io/ios/app/gem-identifier-and-rock-id/id6748907151)

Identify rocks, gems, and crystals instantly by taking a photo. Access a comprehensive database with detailed information and authenticate precious stones. Includes a built-in metal detector for further analysis.

**Highlights:** Instant stone identification via photo, Comprehensive stone database, Gem authentication tool, Built-in metal detector, AI recognition technology

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Yearly | $19.99 | per year |
| Yearly, 3 Days Free Trial | $29.99 | per year |
| Yearly | $29.99 | per year |
| Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Kateit! free?

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

### Is Gem Identifier & Rock ID free?

Gem Identifier & Rock ID is free to download, with in-app purchases available.

### Do Kateit! or Gem Identifier & Rock ID have ads?

Gem Identifier & Rock ID shows ads; Kateit! does not.

### Which is updated more often, Kateit! or Gem Identifier & Rock ID?

Kateit! ships an update monthly, and Gem Identifier & Rock ID monthly. Most recently, Kateit! was updated on October 26, 2026 and Gem Identifier & Rock ID on October 30, 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.*