# McMaster vs Tool Source Warehouse

The clearest difference is update cadence: McMaster at every 5 weeks against Tool Source Warehouse's every 20 months. Tool Source Warehouse's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

McMaster ships an update every 5 weeks, Tool Source Warehouse every 20 months. The most recent releases landed on September 17, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | McMaster | Tool Source Warehouse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews)** | — |
| Number of ratings | **220** | — |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 20 months |
| Monetization | Free | — |
| Size | 8 MB | 63 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) | [Kodaris, Inc](https://appshunter.io/developer/1032999279) |

## 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


### Tool Source Warehouse

[App page](https://appshunter.io/ios/app/tool-source-warehouse/id1592753192)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is McMaster free?

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

### Is Tool Source Warehouse free?

Tool Source Warehouse is free to download, with no in-app purchases.

### Do McMaster or Tool Source Warehouse have ads?

Neither McMaster nor Tool Source Warehouse shows ads.

### Which is updated more often, McMaster or Tool Source Warehouse?

McMaster ships an update every 5 weeks, and Tool Source Warehouse every 20 months. Most recently, McMaster was updated on September 17, 2026 and Tool Source Warehouse on May 15, 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.*