# McMaster vs BAS Part Sales

The clearest difference is rating: BAS Part Sales at 5.0 against McMaster's 4.3. BAS Part Sales also leads on review sentiment (100% vs 68%). McMaster's advantage is update cadence (every 5 weeks vs every 6 months) and ratings volume (220 vs 4). 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.

BAS Part Sales holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: McMaster has 220 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 68% of McMaster's written reviews are positive against 100% of BAS Part Sales's.

McMaster ships an update every 5 weeks, BAS Part Sales every 6 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | McMaster | BAS Part Sales |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/bas-part-sales/id1673654011/reviews)** |
| Number of ratings | **220** | 4 |
| Positive reviews | 68.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 8 MB | 31 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) | [BAS Part Sales LLC](https://appshunter.io/developer/1673654013) |

## What reviewers say

### McMaster

[App page](https://appshunter.io/ios/app/mcmaster-carr/id611431035)

Access a vast catalog of industrial and maintenance supplies from your mobile device. Browse and order over 800,000 products for your plant and facility needs.

**Highlights:** Extensive product catalog, Order from mobile, Plant and facility supplies, Over 800,000 products

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and navigate
- 🚀 Fast search and filtering
- 💡 Excellent catalog and product descriptions
- ⭐ Great company and customer service
- 📦 Quick shipping and delivery

**What reviewers complain about**

- 🐛 App is broken/only header loads
- 🐛 App freezes and becomes unresponsive
- 🐛 Navigation is confusing and awkward
- 🐛 App is not phone-friendly
- 🐛 Font size cannot be increased

**Reported bugs**

- Payment method stays loading indefinitely
- Only header loads
- App is broken
- Navigation tools are in awkward locations and don't work half the time
- Screen shifts slightly

**Requested features**

- Re-optimize app for phone use
- Add Apple Pay as a payment option
- Add a toolbar or ribbon for easier navigation
- Make navigation buttons at the top left like other apps
- Add a "is this page helpful?" link


### BAS Part Sales

[App page](https://appshunter.io/ios/app/bas-part-sales/id1673654011)

Easily search and order new, used, and salvaged aviation parts for various aircraft models. Browse a catalog with detailed part information, pictures, and part numbers to keep your aircraft flying.

**Highlights:** Search aviation parts by part number, make, model, Browse detailed catalog with pictures and part numbers, Order aircraft parts directly from the app, Shop new, used, and salvaged aviation parts, Extensive inventory for various aircraft brands

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

**In-app purchases:** none


## Frequently asked questions

### Is McMaster free?

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

### Is BAS Part Sales free?

BAS Part Sales is free to download, with no in-app purchases.

### Which has better reviews, McMaster or BAS Part Sales?

BAS Part Sales is rated higher. McMaster averages 4.3 out of 5 from 220 ratings, while BAS Part Sales averages 5.0 from 4 ratings.

### Do McMaster or BAS Part Sales have ads?

Neither McMaster nor BAS Part Sales shows ads.

### Which is updated more often, McMaster or BAS Part Sales?

McMaster ships an update every 5 weeks, and BAS Part Sales every 6 months. Most recently, McMaster was updated on November 6, 2026 and BAS Part Sales 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.*