# Brain Trainer. Math. Counting vs STONE IDENTIFIER gem & rock id

Brain Trainer. Math. Counting and STONE IDENTIFIER gem & rock id both sit at 4.5 stars, but that hides the real split: 83% of Brain Trainer. Math. Counting's written reviews are positive against 0% of STONE IDENTIFIER gem & rock id's. Brain Trainer. Math. Counting also leads on ads (none vs shown) and update cadence (every 11 days vs every 3 weeks). STONE IDENTIFIER gem & rock id's advantage is ratings volume (69 vs 8). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Brain Trainer. Math. Counting sells 1 in-app purchase, starting at $0.99 per 7 days and STONE IDENTIFIER gem & rock id sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Brain Trainer. Math. Counting against 4.4 for STONE IDENTIFIER gem & rock id. That said, the two scores are not equally well evidenced: STONE IDENTIFIER gem & rock id has 69 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 83% of Brain Trainer. Math. Counting's written reviews are positive against 0% of STONE IDENTIFIER gem & rock id's.

Brain Trainer. Math. Counting ships an update every 11 days, STONE IDENTIFIER gem & rock id every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Brain Trainer. Math. Counting | STONE IDENTIFIER gem & rock id |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/brain-trainer-math-counting/id6642690933/reviews)** | [4.4 (69 ratings)](https://appshunter.io/ios/app/stone-identifier-gem-and-rock-id/id6739204377/reviews) |
| Number of ratings | 8 | **69** |
| Positive reviews | **83.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 81 MB | 129 MB |
| Requires iOS | **14.0.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sirvard Manukyan](https://appshunter.io/developer/1614374993) | [Rex Tech Ltd](https://appshunter.io/developer/1663772899) |

## What reviewers say

### Brain Trainer. Math. Counting

[App page](https://appshunter.io/ios/app/brain-trainer-math-counting/id6642690933)

Enhance your mental math and logic skills with this engaging game. Solve equations presented in a visually appealing format, suitable for all ages from 4 years old to adults. Enjoy flexible difficulty and unlock new themes to make learning even more enjoyable.

**Highlights:** Mental calculation development, Logic game mechanics, Flexible difficulty settings, Themed content packs, Suitable for all ages

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EQ PRO | $0.99 | per 7 days |


### STONE IDENTIFIER gem & rock id

[App page](https://appshunter.io/ios/app/stone-identifier-gem-and-rock-id/id6739204377)

Instantly identify rocks, minerals, and crystals with AI. Access a comprehensive database, find nearby mineral locations, and learn through educational content. Gamified features and sharing options enhance the discovery experience.

**Highlights:** Instant AI rock and mineral recognition, Comprehensive mineral database, Nearby mineral location finder, Educational geology content, Offline access to data, Achievement system for exploration, Share discoveries via PDF presentations

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access for 1 Week | $4.99 | per 7 days |
| Pro Access for 1 Week | $4.99 | per 7 days |
| Pro Access for 1 Month | $9.99 | per month |
| Pro Access for 1 Year | $19.99 | per year |
| Pro Access for 1 Year | $19.99 | per year |
| Pro Access for 1 Year | $29.99 | per year |


## Frequently asked questions

### Is Brain Trainer. Math. Counting free?

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

### Is STONE IDENTIFIER gem & rock id free?

STONE IDENTIFIER gem & rock id is free to download, with in-app purchases available.

### Which has better reviews, Brain Trainer. Math. Counting or STONE IDENTIFIER gem & rock id?

Brain Trainer. Math. Counting is rated higher. Brain Trainer. Math. Counting averages 4.5 out of 5 from 8 ratings, while STONE IDENTIFIER gem & rock id averages 4.4 from 69 ratings.

### Do Brain Trainer. Math. Counting or STONE IDENTIFIER gem & rock id have ads?

STONE IDENTIFIER gem & rock id shows ads; Brain Trainer. Math. Counting does not.

### Which is updated more often, Brain Trainer. Math. Counting or STONE IDENTIFIER gem & rock id?

Brain Trainer. Math. Counting ships an update every 11 days, and STONE IDENTIFIER gem & rock id every 3 weeks. Most recently, Brain Trainer. Math. Counting was updated on October 24, 2026 and STONE IDENTIFIER gem & 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.*