# Stonhard Mobile vs Carbon

The clearest difference is update cadence: Carbon at every 3 weeks against Stonhard Mobile's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stonhard Mobile ships an update every 2 months, Carbon every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stonhard Mobile | Carbon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/stonhard-mobile/id1554478265/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 15 MB | 70 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RPM International Inc.](https://appshunter.io/developer/431077419) | [Matthew Whitehouse](https://appshunter.io/developer/1890502864) |

## What reviewers say

### Stonhard Mobile

[App page](https://appshunter.io/ios/app/stonhard-mobile/id1554478265)

Access Stonhard's comprehensive product information, including technical documents, safety data sheets, and engineering details. Easily download, email, or share product information directly from your device.

**Highlights:** View product data, Access safety data sheets, Review engineering details, Use the Visualizer Tool, Download documents, Email and share information

**Features:** macOS Compatibility

**In-app purchases:** none


### Carbon

[App page](https://appshunter.io/ios/app/carbon-copyapp/id6761622923)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stonhard Mobile free?

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

### Is Carbon free?

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

### Do Stonhard Mobile or Carbon have ads?

Neither Stonhard Mobile nor Carbon shows ads.

### Which is updated more often, Stonhard Mobile or Carbon?

Stonhard Mobile ships an update every 2 months, and Carbon every 3 weeks. Most recently, Stonhard Mobile was updated on November 3, 2026 and Carbon on October 31, 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.*