# e vs iRock

The clearest difference is rating: iRock at 4.5 against e's 3.0. iRock also leads on ratings volume (511 vs 2) and update cadence (monthly vs every 2 months). e's advantage is monetization model (free vs free with in-app purchases) and review sentiment (67% vs 55%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. e sells 3 in-app purchases, starting at $22.99 per 3 months and iRock sells 8 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

iRock holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: iRock has 511 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 67% of e's written reviews are positive against 55% of iRock's, so the app with the better star average is not the one people write more warmly about.

e ships an update every 2 months, iRock monthly. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | e | iRock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/e-rocks/id1479976121/reviews) | **[4.5 (511 ratings)](https://appshunter.io/ios/app/irock-stone-and-rock-identifier/id6764334548/reviews)** |
| Number of ratings | 2 | **511** |
| Positive reviews | **66.7% of reviews** | 55.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 52 MB | 111 MB |
| Requires iOS | **15.1** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mark Wrigley](https://appshunter.io/developer/1479976120) | [BerthX](https://appshunter.io/developer/1534129683) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-rocks/id1479976121)

Access a comprehensive database of over 6200 mineral species with detailed facts, including names, formulas, occurrences, and properties. This offline-capable app provides quick lookups and links to a larger online mineral catalog.

**Highlights:** 6200+ mineral species database, Detailed species information, Offline access, Links to e-Rocks.com catalog, Quick and easy to use

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| e-Rocks Collectors 3 Months | $22.99 | per 3 months |
| e-Rocks Collectors 6 Months | $39.00 | per 6 months |
| e-Rocks Collectors Annual | $79.00 | per year |


### iRock

[App page](https://appshunter.io/ios/app/irock-stone-and-rock-identifier/id6764334548)

Identify rocks, minerals, and gemstones instantly with AI. Estimate market value, organize your collection, and track its worth over time. Ideal for enthusiasts looking to streamline identification and collection management.

**Highlights:** AI rock and gemstone recognition, Market value estimation, Collection tracking, Scan history, Search and discovery tools

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $6.99 | per 7 days |
| Premium Weekly | $12.99 | per 7 days |
| Premium Monthly | $12.99 | per month |
| Premium Yearly | $29.99 | per year |
| Premium Yearly | $39.99 | per year |
| Premium Yearly | $47.99 | per year |
| Premium Yearly | $47.99 | per year |
| Pro Yearly | $199.99 | per year |


## Frequently asked questions

### Is e free?

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

### Is iRock free?

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

### Which has better reviews, e or iRock?

iRock is rated higher. e averages 3.0 out of 5 from 2 ratings, while iRock averages 4.5 from 511 ratings.

### Do e or iRock have ads?

Neither e nor iRock shows ads.

### Which is updated more often, e or iRock?

e ships an update every 2 months, and iRock monthly. Most recently, e was updated on October 29, 2026 and iRock on October 31, 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.*