# Math.Brain vs Rock Scanner

The clearest difference is review sentiment: Math.Brain at 50% against Rock Scanner's 0%. Math.Brain also leads on rating (4.8 vs 3.9) and update cadence (every 8 days vs every 3 weeks). Rock Scanner's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Math.Brain sells 6 in-app purchases, starting at $12.99 per 7 days and Rock Scanner sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Math.Brain holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 91 and 36 respectively. Written reviews point the same way: 50% of Math.Brain's written reviews are positive against 0% of Rock Scanner's.

Math.Brain ships an update every 8 days, Rock Scanner every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Math.Brain | Rock Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (91 ratings)](https://appshunter.io/ios/app/mathbrain-ai-homework-helper/id6744367490/reviews)** | [3.9 (36 ratings)](https://appshunter.io/ios/app/rock-scanner-identify-stone/id6745610419/reviews) |
| Number of ratings | **91** | 36 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 33 MB | 47 MB |
| Requires iOS | 16.0 | 16 |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [COMPREHENSIVE SOLUTIONS FOR DIGITAL MARKETING AND SOFTWARE DEVELOPMENT LIMITED](https://appshunter.io/developer/6776636491) | [兴建 薛](https://appshunter.io/developer/1806641187) |

## What reviewers say

### Math.Brain

[App page](https://appshunter.io/ios/app/mathbrain-ai-homework-helper/id6744367490)

This AI-powered tool simplifies complex subjects like algebra and geometry with step-by-step explanations and instant answers. It adapts to your learning style, offering personalized guidance to help you study smarter and reduce homework stress.

**Highlights:** AI-powered explanations, Step-by-step problem solving, Instant answers, Personalized learning, Smart scanner, AI chat support

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math.Brain: AI Homework Helper | $12.99 | per 7 days |
| Math.Brain: AI Homework Helper | $12.99 | per 7 days |
| Math.Brain: AI Homework Helper | $14.99 | per month |
| Math.Brain: AI Homework Helper | $15.99 | per month |
| Math.Brain: AI Homework Helper | $83.99 | per year |
| Math.Brain: AI Homework Helper | $99.99 | per year |


### 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 |


## Frequently asked questions

### Is Math.Brain free?

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

### Is Rock Scanner free?

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

### Which has better reviews, Math.Brain or Rock Scanner?

Math.Brain is rated higher. Math.Brain averages 4.8 out of 5 from 91 ratings, while Rock Scanner averages 3.9 from 36 ratings.

### Do Math.Brain or Rock Scanner have ads?

Math.Brain shows ads; Rock Scanner does not.

### Which is updated more often, Math.Brain or Rock Scanner?

Math.Brain ships an update every 8 days, and Rock Scanner every 3 weeks. Most recently, Math.Brain was updated on October 24, 2026 and Rock Scanner on October 24, 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.*