# McMaster vs BelMetric

The clearest difference is rating: BelMetric at 5.0 against McMaster's 4.3. BelMetric also leads on update cadence (weekly vs every 5 weeks) and iOS requirement (13.0 vs 15.0). McMaster's advantage is ratings volume (220 vs 8). 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.

BelMetric 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 8, so its average is the more settled of the two.

McMaster ships an update every 5 weeks, BelMetric weekly. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | McMaster | BelMetric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/belmetric/id6747654332/reviews)** |
| Number of ratings | **220** | 8 |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 8 MB | 60 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) | [BEL-METRIC, INC.](https://appshunter.io/developer/1822205619) |

## 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


### BelMetric

[App page](https://appshunter.io/ios/app/belmetric/id6747654332)

Browse and purchase metric fasteners and hardware directly from your mobile device. Access technical drawings, data sheets, and 3D CAD models to ensure you select the correct parts. Streamline your ordering process with custom lists and bulk quote requests.

**Highlights:** Shop metric fasteners and hardware, Access technical drawings and data sheets, View 3D CAD models, Save favorite products with custom lists, Submit bulk quote requests, Fast and reliable ordering

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is McMaster free?

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

### Is BelMetric free?

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

### Which has better reviews, McMaster or BelMetric?

BelMetric is rated higher. McMaster averages 4.3 out of 5 from 220 ratings, while BelMetric averages 5.0 from 8 ratings.

### Do McMaster or BelMetric have ads?

Neither McMaster nor BelMetric shows ads.

### Which is updated more often, McMaster or BelMetric?

McMaster ships an update every 5 weeks, and BelMetric weekly. Most recently, McMaster was updated on October 20, 2026 and BelMetric on October 14, 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.*