# Carquest Professional vs O'Reilly Pro

The clearest difference is review sentiment: O'Reilly Pro at 60% against Carquest Professional's 17%. O'Reilly Pro also leads on rating (4.3 vs 2.5) and ads (none vs shown). Carquest Professional's advantage is iOS requirement (9.0 vs 16.0). 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.

O'Reilly Pro holds the better App Store score, 4.3 against 2.5. That said, the two scores are not equally well evidenced: O'Reilly Pro has 386 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 17% of Carquest Professional's written reviews are positive against 60% of O'Reilly Pro's.

Carquest Professional ships an update every 7 months, O'Reilly Pro every 4 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Carquest Professional | O'Reilly Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (8 ratings)](https://appshunter.io/ios/app/carquest-professional/id1492156235/reviews) | **[4.3 (386 ratings)](https://appshunter.io/ios/app/oreilly-pro/id6467030803/reviews)** |
| Number of ratings | 8 | **386** |
| Positive reviews | 16.7% of reviews | **60.4% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 4 weeks** |
| Monetization | Ad-supported | **Free** |
| Best chart rank | — | **#137** |
| Size | 6 MB | 53 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Advance Auto Parts](https://appshunter.io/developer/955512450) | [O'Reilly Auto Parts](https://appshunter.io/developer/867284451) |

## 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


### O'Reilly Pro

[App page](https://appshunter.io/ios/app/oreilly-pro/id6467030803)

**Currently charting:** #137 Top Free · Business (US App Store)

Streamline vehicle service and parts management with this app designed for automotive repair professionals. Features include VIN scanning, parts lookup, ordering, and customer quoting. Supports English and Spanish.

**Highlights:** VIN scanner and license plate decoder, Parts lookup and ordering, Real-time inventory access, Part number interchange, Order placement and tracking, Customer quoting via text/email, Bilingual support (English/Spanish)

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and quick
- 👍 Smooth and quick research
- 👍 Keeps cars rotating off lifts
- 👍 Simple to use, parts categorized
- 👍 Wonderful app, made job easier

**What reviewers complain about**

- 🔒 Cannot use without making an account, no guest mode
- ⚠️ Invoices on web and app do not include tax, inconvenient

**Reported bugs**

- Cannot get into app past login screen after 8 pm

**Requested features**

- Vehicle data/spec like Google
- Print invoices with tax


## Frequently asked questions

### Is Carquest Professional free?

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

### Is O'Reilly Pro free?

O'Reilly Pro is free to download, with no in-app purchases.

### Which has better reviews, Carquest Professional or O'Reilly Pro?

O'Reilly Pro is rated higher. Carquest Professional averages 2.5 out of 5 from 8 ratings, while O'Reilly Pro averages 4.3 from 386 ratings.

### Do Carquest Professional or O'Reilly Pro have ads?

Carquest Professional shows ads; O'Reilly Pro does not.

### Which is updated more often, Carquest Professional or O'Reilly Pro?

Carquest Professional ships an update every 7 months, and O'Reilly Pro every 4 weeks. Most recently, Carquest Professional was updated on October 29, 2026 and O'Reilly Pro on October 30, 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.*