# Carquest Professional vs MesserAgent

The clearest difference is ads: MesserAgent at none against Carquest Professional's shown. MesserAgent also leads on update cadence (every 6 weeks vs every 7 months). Carquest Professional's advantage is iOS requirement (9.0 vs 15.0). On price, 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.

Carquest Professional ships an update every 7 months, MesserAgent every 6 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Carquest Professional | MesserAgent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (8 ratings)](https://appshunter.io/ios/app/carquest-professional/id1492156235/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 234 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Advance Auto Parts](https://appshunter.io/developer/955512450) | [Messer North America Inc.](https://appshunter.io/developer/1622195380) |

## What reviewers say

### Carquest Professional

[App page](https://appshunter.io/ios/app/carquest-professional/id1492156235)

This app allows professional automotive customers to scan vehicle VIN barcodes to quickly retrieve detailed vehicle information. Users can then search for and order parts directly through their secure account, and store scanned vehicle data for future reference.

**Highlights:** Scan vehicle VIN barcodes, Retrieve detailed vehicle information (year, make, model, engine), Search and order parts, Store scanned vehicle data, Upload scanned data to online account

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

**In-app purchases:** none


### MesserAgent

[App page](https://appshunter.io/ios/app/messeragent/id6470624219)

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

**In-app purchases:** none


## Frequently asked questions

### Is Carquest Professional free?

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

### Is MesserAgent free?

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

### Do Carquest Professional or MesserAgent have ads?

Carquest Professional shows ads; MesserAgent does not.

### Which is updated more often, Carquest Professional or MesserAgent?

Carquest Professional ships an update every 7 months, and MesserAgent every 6 weeks. Most recently, Carquest Professional was updated on October 20, 2026 and MesserAgent on October 25, 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.*