# VIN decoder & VIN code scanner vs HmmChk

The clearest difference is in-app purchases: HmmChk at none against VIN decoder & VIN code scanner's 2. HmmChk also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. VIN decoder & VIN code scanner sells 2 in-app purchases, starting at $4.99 per month. HmmChk asks for nothing beyond the download.

VIN decoder & VIN code scanner ships an update every 3 weeks, HmmChk every 2 days. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | VIN decoder & VIN code scanner | HmmChk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (192 ratings)](https://appshunter.io/ios/app/vin-decoder-and-vin-code-scanner/id6446398420/reviews)** | — |
| Number of ratings | **192** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 36 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vitaliy Mischenko](https://appshunter.io/developer/1661516195) | [Bradley Ross](https://appshunter.io/developer/1857461283) |

## What reviewers say

### VIN decoder & VIN code scanner

[App page](https://appshunter.io/ios/app/vin-decoder-and-vin-code-scanner/id6446398420)

Instantly decode any vehicle's VIN with this app. It offers both manual input and a VIN scanner for quick, accurate vehicle information, including auction history and average pricing.

**Highlights:** VIN code decoding, Real-time VIN scanner, VIN code recognition from text, Auction participation check, Average vehicle price estimation, VIN code validation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access for a month | $4.99 | per month |
| Premium Access for a year | $49.99 | per year |


### HmmChk

[App page](https://appshunter.io/ios/app/hmmchk/id6755938185)

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

**In-app purchases:** none


## Frequently asked questions

### Is VIN decoder & VIN code scanner free?

VIN decoder & VIN code scanner is free to download, with in-app purchases available.

### Is HmmChk free?

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

### Do VIN decoder & VIN code scanner or HmmChk have ads?

VIN decoder & VIN code scanner shows ads; HmmChk does not.

### Which is updated more often, VIN decoder & VIN code scanner or HmmChk?

VIN decoder & VIN code scanner ships an update every 3 weeks, and HmmChk every 2 days. Most recently, VIN decoder & VIN code scanner was updated on October 21, 2026 and HmmChk on October 14, 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.*