# Rock Identifier vs Enigma

The clearest difference is ads: Enigma at none against Rock Identifier's shown. Rock Identifier's advantage is update cadence (weekly vs fortnightly) and iOS requirement (15.6 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Rock Identifier sells 7 in-app purchases, starting at $4.99 per 7 days and Enigma sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Rock Identifier ships an update weekly, Enigma fortnightly. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Rock Identifier | Enigma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (72 ratings)](https://appshunter.io/ios/app/rock-identifier-stone-checker/id6745476824/reviews)** | — |
| Number of ratings | **72** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 21 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blueberry Web Solutions Pvt. Ltd](https://appshunter.io/developer/1022756761) | [Jan Eggers](https://appshunter.io/developer/6795667629) |

## What reviewers say

### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-stone-checker/id6745476824)

Instantly identify stones, crystals, and minerals with a photo. Access detailed information, quality guides, market values, and even a metal detector. Organize your collection and find nearby shops.

**Highlights:** Instant photo identification of rocks, minerals, crystals, Detailed encyclopedia with geological info, Stone quality assessment and market value estimation, Crystal healing and zodiac insights, Metal detector tool, Real vs. fake stone detection, Personal rock collection management

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RockID Weekly Pro | $4.99 | per 7 days |
| Rock Identifier Premium Weekly | $8.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Premium Yearly Subscription | $19.99 | per year |
| Rock Identifier Premium Yearly | $29.99 | per year |
| RockID Yearly Pro | $39.99 | per year |
| Rock Identifier & Stone Checker | $49.99 | one-time |


### Enigma

[App page](https://appshunter.io/ios/app/enigma-simulator-machine/id6816319506)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enigma Pro | $3.99 | one-time |


## Frequently asked questions

### Is Rock Identifier free?

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

### Is Enigma free?

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

### Do Rock Identifier or Enigma have ads?

Rock Identifier shows ads; Enigma does not.

### Which is updated more often, Rock Identifier or Enigma?

Rock Identifier ships an update weekly, and Enigma fortnightly. Most recently, Rock Identifier was updated on October 28, 2026 and Enigma on October 26, 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.*