# O'Reilly Pro vs MECP Certification

The clearest difference is rating: MECP Certification at 5.0 against O'Reilly Pro's 4.3. O'Reilly Pro's advantage is in-app purchases (none vs 11) and ratings volume (384 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. MECP Certification sells 11 one-off in-app purchases. O'Reilly Pro asks for nothing beyond the download.

MECP Certification holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: O'Reilly Pro has 384 ratings behind it against 1, so its average is the more settled of the two.

O'Reilly Pro ships an update every 4 weeks, MECP Certification every 3 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | O'Reilly Pro | MECP Certification |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (384 ratings)](https://appshunter.io/ios/app/oreilly-pro/id6467030803/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mecp-certification/id6479511991/reviews)** |
| Number of ratings | **384** | 1 |
| Positive reviews | 60.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Free | Free |
| Best chart rank | **#93** | — |
| Size | 53 MB | 110 MB |
| Requires iOS | 16.0 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [O'Reilly Auto Parts](https://appshunter.io/developer/867284451) | [Certification Systems Technology Company](https://appshunter.io/developer/1736089415) |

## What reviewers say

### O'Reilly Pro

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

**Currently charting:** #93 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


### MECP Certification

[App page](https://appshunter.io/ios/app/mecp-certification/id6479511991)

Access your learning portal for mobile electronics installation courses and certification. View and complete course sections, then take your exam directly from your mobile device.

**Highlights:** Access learning portal, View available courses, Complete course sections, Take certification exam, Mobile device access

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prod Tech Specialist (1-Year) | $129.00 | one-time |
| Installation Technician Cert | $129.99 | one-time |
| Skilled Technician 1-Year | $169.00 | one-time |
| Audio Specialist (1-Year) | $169.00 | one-time |
| Sec & Conv Tech (1-Year) | $179.00 | one-time |
| Expert Install Tech (1-Year) | $229.00 | one-time |
| Skilled Install Tech (2-Year) | $329.00 | one-time |
| Audio Specialist 2 | $329.00 | one-time |
| Light Duty Fleet Cert (2-Year) | $349.00 | one-time |
| Sec & Conv Tech (2-Year) | $349.00 | one-time |
| Expert Install Tech (2-Year) | $429.00 | one-time |


## Frequently asked questions

### Is O'Reilly Pro free?

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

### Is MECP Certification free?

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

### Which has better reviews, O'Reilly Pro or MECP Certification?

MECP Certification is rated higher. O'Reilly Pro averages 4.3 out of 5 from 384 ratings, while MECP Certification averages 5.0 from 1 ratings.

### Do O'Reilly Pro or MECP Certification have ads?

Neither O'Reilly Pro nor MECP Certification shows ads.

### Which is updated more often, O'Reilly Pro or MECP Certification?

O'Reilly Pro ships an update every 4 weeks, and MECP Certification every 3 months. Most recently, O'Reilly Pro was updated on October 25, 2026 and MECP Certification on October 24, 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.*