# NOAA Directory vs O'Reilly Pro

The clearest difference is rating: O'Reilly Pro at 4.3 against NOAA Directory's 3.7. O'Reilly Pro also leads on ratings volume (387 vs 3) and update cadence (every 4 weeks vs every 3 months). NOAA Directory's advantage is iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and monetization model 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 3.7. That said, the two scores are not equally well evidenced: O'Reilly Pro has 387 ratings behind it against 3, so its average is the more settled of the two.

NOAA Directory ships an update every 3 months, O'Reilly Pro every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | NOAA Directory | O'Reilly Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/noaa-directory/id1205621233/reviews) | **[4.3 (387 ratings)](https://appshunter.io/ios/app/oreilly-pro/id6467030803/reviews)** |
| Number of ratings | 3 | **387** |
| Positive reviews | — | 60.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Best chart rank | — | **#134** |
| Size | 54 MB | 53 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [National Oceanic and Atmospheric Administration](https://appshunter.io/developer/583383075) | [O'Reilly Auto Parts](https://appshunter.io/developer/867284451) |

## What reviewers say

### NOAA Directory

[App page](https://appshunter.io/ios/app/noaa-directory/id1205621233)

Easily find contact details for NOAA personnel. Search by name, phone, or email to connect directly or save contacts. This tool streamlines communication within the organization.

**Highlights:** Search by name, phone, or email, Direct contact options, Add contacts to list, Find NOAA personnel

**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:** #134 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 NOAA Directory free?

NOAA Directory 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, NOAA Directory or O'Reilly Pro?

O'Reilly Pro is rated higher. NOAA Directory averages 3.7 out of 5 from 3 ratings, while O'Reilly Pro averages 4.3 from 387 ratings.

### Do NOAA Directory or O'Reilly Pro have ads?

Neither NOAA Directory nor O'Reilly Pro shows ads.

### Which is updated more often, NOAA Directory or O'Reilly Pro?

NOAA Directory ships an update every 3 months, and O'Reilly Pro every 4 weeks. Most recently, NOAA Directory was updated on November 2, 2026 and O'Reilly Pro on November 3, 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.*