# ELMCheck vs CarpenterCalc

The clearest difference is in-app purchases: CarpenterCalc at none against ELMCheck's 1. CarpenterCalc also leads on iOS requirement (15.1 vs 18). On price, ads and device support there is nothing between them.

Both are free to download. ELMCheck sells 1 one-off in-app purchase. CarpenterCalc asks for nothing beyond the download.

## The numbers

| Metric | ELMCheck | CarpenterCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/elmcheck/id6479630442/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 22 MB |
| Requires iOS | 18 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fearless design, LLC](https://appshunter.io/developer/321056993) | [PATRICK MICHAEL MORAN](https://appshunter.io/developer/1896337227) |

## What reviewers say

### ELMCheck

[App page](https://appshunter.io/ios/app/elmcheck/id6479630442)

Verify the authenticity and functionality of your OBD-II scanner. This app runs comprehensive tests on ELM327 commands to report supported features, ensuring safe and reliable use with your vehicle.

**Highlights:** Authenticity testing for OBD-II scanners, Comprehensive ELM327 command test suite, Reports actual supported features, Ensures safe scanner usage, Basic tests are free, Unlock full suite with in-app purchase

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Comprehensive testing | $2.99 | one-time |


### CarpenterCalc

[App page](https://appshunter.io/ios/app/carpentercalc/id6771495890)

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

**In-app purchases:** none


## Frequently asked questions

### Is ELMCheck free?

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

### Is CarpenterCalc free?

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

### Do ELMCheck or CarpenterCalc have ads?

Neither ELMCheck nor CarpenterCalc shows ads.

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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.*