# McMaster vs 3M Electrical

The clearest difference is update cadence: McMaster at every 5 weeks against 3M Electrical's every 6 months. McMaster also leads on ratings volume (220 vs 4) and review sentiment (68% vs 50%). 3M Electrical's advantage is iOS requirement (10.0 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.3 for McMaster against 4.3 for 3M Electrical. 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 are what separate them: 68% of McMaster's written reviews are positive against 50% of 3M Electrical's.

McMaster ships an update every 5 weeks, 3M Electrical every 6 months. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | McMaster | 3M Electrical |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) | [4.3 (4 ratings)](https://appshunter.io/ios/app/3m-electrical/id1078730087/reviews) |
| Number of ratings | **220** | 4 |
| Positive reviews | **68.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 8 MB | 35 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) | [Dirxion LLC](https://appshunter.io/developer/353200531) |

## 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


### 3M Electrical

[App page](https://appshunter.io/ios/app/3m-electrical/id1078730087)

Browse and manage a wide range of electrical products with this interactive tool. Create project lists, search for specific items, and download catalogs for offline viewing. Easily share product details with others.

**Highlights:** Create project lists, Search products by keyword, Share product information, Download catalog for offline access, Interactive product exploration

**In-app purchases:** none


## Frequently asked questions

### Is McMaster free?

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

### Is 3M Electrical free?

3M Electrical is free to download, with no in-app purchases.

### Which has better reviews, McMaster or 3M Electrical?

McMaster and 3M Electrical are both rated 4.3 out of 5 on the App Store, from 220 and 4 ratings respectively.

### Do McMaster or 3M Electrical have ads?

Neither McMaster nor 3M Electrical shows ads.

### Which is updated more often, McMaster or 3M Electrical?

McMaster ships an update every 5 weeks, and 3M Electrical every 6 months. Most recently, McMaster was updated on September 17, 2026 and 3M Electrical on September 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*