# Rock Scanner vs DMV Practice Test

The clearest difference is rating: Rock Scanner at 3.8 against DMV Practice Test's 1.0. Rock Scanner also leads on monetization model (free with in-app purchases vs subscription) and update cadence (every 3 weeks vs every 4 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Rock Scanner sells 3 in-app purchases, starting at $6.99 per 7 days and DMV Practice Test sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rock Scanner holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: Rock Scanner has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

Rock Scanner ships an update every 3 weeks, DMV Practice Test every 4 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Rock Scanner | DMV Practice Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (32 ratings)](https://appshunter.io/ios/app/rock-scanner-identify-stone/id6745610419/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/dmv-practice-test-cdl-prep/id6748056562/reviews) |
| Number of ratings | **32** | 2 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 47 MB | 324 MB |
| Requires iOS | 16 | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [兴建 薛](https://appshunter.io/developer/1806641187) | [Jacob Mac Donald](https://appshunter.io/developer/1824127307) |

## What reviewers say

### Rock Scanner

[App page](https://appshunter.io/ios/app/rock-scanner-identify-stone/id6745610419)

Instantly identify rocks, minerals, and crystals with a single photo using advanced AI. Get detailed geological information, learn about their properties, and build a personal collection of your discoveries. Perfect for students, hikers, and rock enthusiasts.

**Highlights:** AI-powered rock identification, Detailed geological information, Save and collect discoveries, Identify minerals and crystals, Analyze chemical makeup and hardness, Track geological journey

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Scanner Weekly Trial | $6.99 | per 7 days |
| Rock Scanner Weekly | $6.99 | per 7 days |
| Rock Scanner Yearly | $39.99 | per year |


### DMV Practice Test

[App page](https://appshunter.io/ios/app/dmv-practice-test-cdl-prep/id6748056562)

Prepare for your driving permit and CDL tests with personalized practice tests and AI-powered coaching. Track your progress, review incorrect answers, and get detailed explanations to build confidence for your official DMV exam.

**Highlights:** Personalized state-specific tests, Realistic exam simulator, AI Coach with tips and explanations, Progress tracking and learning goals, Review incorrect answers, Custom study plans

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly-Trial | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $39.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Rock Scanner free?

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

### Is DMV Practice Test free?

DMV Practice Test is free to download, with in-app purchases available.

### Which has better reviews, Rock Scanner or DMV Practice Test?

Rock Scanner is rated higher. Rock Scanner averages 3.8 out of 5 from 32 ratings, while DMV Practice Test averages 1.0 from 2 ratings.

### Do Rock Scanner or DMV Practice Test have ads?

Neither Rock Scanner nor DMV Practice Test shows ads.

### Which is updated more often, Rock Scanner or DMV Practice Test?

Rock Scanner ships an update every 3 weeks, and DMV Practice Test every 4 months. Most recently, Rock Scanner was updated on October 15, 2026 and DMV Practice Test on October 14, 2026.

---

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