# McMaster vs Caswell Inc

The clearest difference is ratings volume: McMaster at 220 against Caswell Inc's 6. McMaster also leads on update cadence (every 5 weeks vs every 3 months) and iOS requirement (15.0 vs 18). 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 Caswell Inc. That said, the two scores are not equally well evidenced: McMaster has 220 ratings behind it against 6, so its average is the more settled of the two.

McMaster ships an update every 5 weeks, Caswell Inc every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | McMaster | Caswell Inc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/caswell-inc/id1588045119/reviews)** |
| Number of ratings | **220** | 6 |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 8 MB | 6 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) | [Caswell Inc](https://appshunter.io/developer/1014963712) |

## 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


### Caswell Inc

[App page](https://appshunter.io/ios/app/caswell-inc/id1588045119)

Shop for DIY metal finishing supplies, including electroplating and anodizing kits. Get first access to new products, browse the latest collections, and track your orders with a streamlined shopping experience.

**Highlights:** Push notifications for new drops, Browse latest collections, Streamlined shopping experience, Save items to wish list, Track orders and manage account

**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 Caswell Inc free?

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

### Which has better reviews, McMaster or Caswell Inc?

Caswell Inc is rated higher. McMaster averages 4.3 out of 5 from 220 ratings, while Caswell Inc averages 4.3 from 6 ratings.

### Do McMaster or Caswell Inc have ads?

Neither McMaster nor Caswell Inc shows ads.

### Which is updated more often, McMaster or Caswell Inc?

McMaster ships an update every 5 weeks, and Caswell Inc every 3 months. Most recently, McMaster was updated on November 1, 2026 and Caswell Inc on November 3, 2026.

---

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