# First grade Math vs Rock Identifier

The clearest difference is price: Rock Identifier at Free against First grade Math's $2.99. Rock Identifier also leads on update cadence (monthly vs every 28 months). First grade Math's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.0). On ads and device support there is nothing between them.

Rock Identifier is free to download; First grade Math costs $2.99 up front. Rock Identifier sells 2 in-app purchases, starting at $5.99 per 7 days. First grade Math asks for nothing beyond the download.

First grade Math ships an update every 28 months, Rock Identifier monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | First grade Math | Rock Identifier |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[3.7 (6 ratings)](https://appshunter.io/ios/app/rock-identifier-rocksnap/id6746497688/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Monthly** |
| Monetization | — | Freemium |
| Size | 18 MB | 32 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [Siham Aater Taleb](https://appshunter.io/developer/1797308286) |

## What reviewers say

### First grade Math

[App page](https://appshunter.io/ios/app/first-grade-math-subtraction/id1271513744)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-rocksnap/id6746497688)

Instantly identify rocks, minerals, and crystals with a photo. Get detailed information on hardness, formation, and origins. Build a personal digital collection of your geological finds.

**Highlights:** Identify rocks with a photo, Detailed rock descriptions, Learn about formation and origins, Understand Mohs hardness scale, Save and collect finds, AI that improves over time

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $5.99 | per 7 days |
| Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is First grade Math free?

First grade Math costs $2.99, with no in-app purchases.

### Is Rock Identifier free?

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

### Do First grade Math or Rock Identifier have ads?

Neither First grade Math nor Rock Identifier shows ads.

### Which is updated more often, First grade Math or Rock Identifier?

First grade Math ships an update every 28 months, and Rock Identifier monthly. Most recently, First grade Math was updated on November 3, 2026 and Rock Identifier on November 5, 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.*