# McMaster vs ZenSupply.com

The clearest difference is rating: ZenSupply.com at 5.0 against McMaster's 4.3. ZenSupply.com also leads on review sentiment (100% vs 68%) and update cadence (weekly vs every 5 weeks). McMaster's advantage is ratings volume (220 vs 1). 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.

ZenSupply.com 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 1, 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 ZenSupply.com's.

McMaster ships an update every 5 weeks, ZenSupply.com weekly. The most recent releases landed on October 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | McMaster | ZenSupply.com |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zensupplycom/id6756304085/reviews)** |
| Number of ratings | **220** | 1 |
| Positive reviews | 68.5% of reviews | **100.0% 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) | [ZenSupply, Inc](https://appshunter.io/developer/1850546342) |

## 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


### ZenSupply.com

[App page](https://appshunter.io/ios/app/zensupplycom/id6756304085)

Streamline your business's supply chain with this intuitive mobile app. Easily source industrial and MRO supplies, reorder items quickly, track shipments in real-time, and gain insights into spending. Facilitates team collaboration and ensures secure, compliant purchasing.

**Highlights:** Smarter sourcing from extensive catalogs, Lightning-fast reordering and recurring orders, Real-time order tracking and notifications, Spend analytics and pricing comparison, Team collaboration with role-based permissions, Secure and compliant purchasing workflows

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is McMaster free?

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

### Is ZenSupply.com free?

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

### Which has better reviews, McMaster or ZenSupply.com?

ZenSupply.com is rated higher. McMaster averages 4.3 out of 5 from 220 ratings, while ZenSupply.com averages 5.0 from 1 ratings.

### Do McMaster or ZenSupply.com have ads?

Neither McMaster nor ZenSupply.com shows ads.

### Which is updated more often, McMaster or ZenSupply.com?

McMaster ships an update every 5 weeks, and ZenSupply.com weekly. Most recently, McMaster was updated on October 16, 2026 and ZenSupply.com on September 24, 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.*