# W.W. Grainger, Inc. vs McMaster

The clearest difference is rating: W.W. Grainger, Inc. at 4.8 against McMaster's 4.3. W.W. Grainger, Inc. also leads on ratings volume (27K vs 220) and update cadence (fortnightly vs every 5 weeks). McMaster's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (15.0 vs 18.0). On price, review sentiment, 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.

W.W. Grainger, Inc. holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: W.W. Grainger, Inc. has 27K ratings behind it against 220, so its average is the more settled of the two. Written reviews complicate that: 65% of W.W. Grainger, Inc.'s written reviews are positive against 68% of McMaster's, so the app with the better star average is not the one people write more warmly about.

W.W. Grainger, Inc. ships an update fortnightly, McMaster every 5 weeks. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | W.W. Grainger, Inc. | McMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (27K ratings)](https://appshunter.io/ios/app/ww-grainger-inc/id526722540/reviews)** | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) |
| Number of ratings | **27K** | 220 |
| Positive reviews | 65.2% of reviews | **68.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 93 MB | 8 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [W.W. Grainger, Inc.](https://appshunter.io/developer/379095966) | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) |

## What reviewers say

### W.W. Grainger, Inc.

[App page](https://appshunter.io/ios/app/ww-grainger-inc/id526722540)

Access industrial supplies and manage inventory on the go. Quickly search for items, check real-time availability at branches, and scan barcodes to add products to your cart. Get expert help and track orders and pending approvals.

**Highlights:** Real-time item availability, KeepStock inventory management, Barcode scanning for cart addition, Branch locator for pickup, Chat with experts, Manage pending orders and lists, Order history tracking

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Improved search function
- 👍 User-friendly app
- 🚀 Efficient ordering and pickup
- 👍 Helpful and knowledgeable staff
- 🚀 Wide product selection and availability

**What reviewers complain about**

- 🐛 Buggy app with crashes and login issues
- 🔍 Difficult to find products, poor search
- ⚠️ Inconsistent order tracking and notifications
- 💰 High prices compared to competitors
- 🕰️ Slow performance and navigation

**Reported bugs**

- Orders not showing up in order history
- Repeated crashes and login issues
- Inability to select shipping options for pickup orders
- Inconsistent behavior when adding/removing items from cart

**Requested features**

- Ability to search order history and personal lists
- Clearer pricing and shipping cost information
- Improved product details and recommendations
- Seamless integration between app and website


### 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


## Frequently asked questions

### Is W.W. Grainger, Inc. free?

W.W. Grainger, Inc. is free to download, with no in-app purchases.

### Is McMaster free?

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

### Which has better reviews, W.W. Grainger, Inc. or McMaster?

W.W. Grainger, Inc. is rated higher. W.W. Grainger, Inc. averages 4.8 out of 5 from 27K ratings, while McMaster averages 4.3 from 220 ratings.

### Do W.W. Grainger, Inc. or McMaster have ads?

Neither W.W. Grainger, Inc. nor McMaster shows ads.

### Which is updated more often, W.W. Grainger, Inc. or McMaster?

W.W. Grainger, Inc. ships an update fortnightly, and McMaster every 5 weeks. Most recently, W.W. Grainger, Inc. was updated on September 25, 2026 and McMaster on September 17, 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.*