# halka vs Rock

The clearest difference is in-app purchases: halka at none against Rock's 3. halka also leads on update cadence (every 3 days vs every 3 weeks). Rock's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. Rock sells 3 in-app purchases, starting at $3.99 per 7 days. halka asks for nothing beyond the download.

halka ships an update every 3 days, Rock every 3 weeks. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | halka | Rock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (61 ratings)](https://appshunter.io/ios/app/rock-scan/id6498787560/reviews)** |
| Number of ratings | — | **61** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 33 MB | 87 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Ali Allauddin](https://appshunter.io/developer/1189016094) | [Dovran Muhammetrustemov](https://appshunter.io/developer/1741797293) |

## What reviewers say

### halka

[App page](https://appshunter.io/ios/app/halka/id6471072166)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rock

[App page](https://appshunter.io/ios/app/rock-scan/id6498787560)

This application allows users to scan and identify rocks and minerals directly from their mobile device. It provides a convenient way to learn about geological samples encountered in everyday life.

**Highlights:** Scan rocks and minerals, Identify geological samples, Mobile identification tool, Learn about rock types

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access Rock-Scan pro weekly | $3.99 | per 7 days |
| Access Rock-Scan pro monthly | $9.99 | per month |
| Access Rock-Scan pro yearly | $59.99 | per year |

**What reviewers like**

- 👍 User-friendly interface
- 🚀 Fast identification
- 💡 Educational content
- 💎 Accurate rock identification
- ✨ Identifies non-rocks

**What reviewers complain about**

- 🐛 Inaccurate information
- 🐛 App doesn't work after update
- 🐛 Identified as pastry/cake/metal/charcoal/pottery
- 🐛 Cannot identify common rocks
- 🐛 Identified as not a rock or mineral

**Reported bugs**

- App doesn't work after update
- Failed to connect
- Identified as not a rock or mineral
- Cannot identify common rocks
- Inaccurate identification of some rocks


## Frequently asked questions

### Is halka free?

halka is free to download, with no in-app purchases.

### Is Rock free?

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

### Do halka or Rock have ads?

Neither halka nor Rock shows ads.

### Which is updated more often, halka or Rock?

halka ships an update every 3 days, and Rock every 3 weeks. Most recently, halka was updated on October 9, 2026 and Rock on October 16, 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.*