# McMaster vs Olight

McMaster and Olight both sit at 4.3 stars, but that hides the real split: 68% of McMaster's written reviews are positive against 28% of Olight's. McMaster also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Olight's advantage is update cadence (every 11 days vs every 5 weeks). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.3 for McMaster against 4.4 for Olight. Both are backed by a comparable volume of ratings — 220 and 60 respectively. Written reviews are what separate them: 68% of McMaster's written reviews are positive against 28% of Olight's.

McMaster ships an update every 5 weeks, Olight every 11 days. The most recent releases landed on September 17, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | McMaster | Olight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (220 ratings)](https://appshunter.io/ios/app/mcmaster-carr/id611431035/reviews) | **[4.4 (60 ratings)](https://appshunter.io/ios/app/olight/id6476482087/reviews)** |
| Number of ratings | **220** | 60 |
| Positive reviews | **68.5% of reviews** | 28.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 379 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [McMaster-Carr Supply Company](https://appshunter.io/developer/611431038) | [Olight Group Co., Ltd.](https://appshunter.io/developer/1629603693) |

## 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


### Olight

[App page](https://appshunter.io/ios/app/olight/id6476482087)

Discover a wide selection of high-quality lighting products for outdoor adventures, everyday carry, and tactical needs. Enjoy exclusive coupons, membership benefits, and a lifetime warranty on all purchases. Find reliable and convenient lighting solutions for every situation.

**Highlights:** Exclusive coupons for new users, Membership levels with privileges, Lifetime product warranty, 30-day free returns, Free shipping over $49, Wide range of lighting products

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💎 Great quality products
- 🤝 Excellent customer service
- 📦 Quick shipping and packaging
- 🎁 Frequent sales and giveaways

**What reviewers complain about**

- 🐛 Buggy and unstable app
- 🤖 Excessive ads and marketing
- 🔒 Privacy concerns with data collection
- 🤔 Confusing and unintuitive UI
- 🔌 Connectivity issues with devices

**Reported bugs**

- Frequent app crashes
- Login and registration issues
- Devices constantly showing as offline
- Inability to access all light modes

**Requested features**

- Separate app for device control
- Customization options for lights
- Landscape mode support
- Dark mode option
- Improved scheduling and automation


## Frequently asked questions

### Is McMaster free?

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

### Is Olight free?

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

### Which has better reviews, McMaster or Olight?

Olight is rated higher. McMaster averages 4.3 out of 5 from 220 ratings, while Olight averages 4.4 from 60 ratings.

### Do McMaster or Olight have ads?

Olight shows ads; McMaster does not.

### Which is updated more often, McMaster or Olight?

McMaster ships an update every 5 weeks, and Olight every 11 days. Most recently, McMaster was updated on September 17, 2026 and Olight on September 22, 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.*