McMaster vs ACS Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
McMaster
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.
- Extensive product catalog
- Order from mobile
- Plant and facility supplies
- Over 800,000 products
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McMaster-Carr is the complete source for everything in your plant. Order over 700,000 products from the palm of your hand. Terms and Conditions: https://www.mcmaster.com/#terms
ACS Go
Easily find and order specific parts for your equipment. Link orders to individual machines and access your order history on the go. All the functionality of the website is now available in a convenient mobile application.
- Find and order specific parts
- Link orders to machines
- Check previous orders
- Access order history anywhere
- Full website functionality
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ACS Go gives Air Compressor Services customers a faster way to order compressor parts, manage machines, track orders, and access key purchasing details from a phone or tablet. When a machine needs attention, the hard part is not always ordering the part. Sometimes it is remembering what you ordered last time. ACS Go makes that information easier to reach, whether you’re at your desk, on the plant floor, or out on the jobsite. With ACS Go, you can: Order compressor parts from your phone or tablet Add and manage your machines Link orders and products to specific equipment Check previous orders anytime Confirm past part numbers faster Save favorite products for easier repurchasing Receive push notifications when order status changes Download packing slips and invoices from orders Securely save and reuse credit cards Add your own purchase order number at checkout ACS Go is built for customers who rely on compressed air and need a simpler way to manage parts, machines, orders, documents, and purchasing details wherever the day takes them. Go Mobile. Stay Running.
Screenshots
Verdict
The clearest difference is rating: ACS Go at 5.0 against McMaster's 4.3. McMaster's advantage is update cadence (every 5 weeks vs every 6 months) and ratings volume (220 vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ACS Go 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 5, so its average is the more settled of the two.
McMaster ships an update every 5 weeks, ACS Go every 6 months. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.
| Parameter | McMaster | ACS Go |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (220 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 68.5% of reviews | — |
| Number of ratings | 220 — better | 5 |
| Update frequency | Every 5 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 8 MB | 52 MB |
| Age rating | 4+ | 17+ |
| Developer | McMaster-Carr Supply Company | Air Compressor Services |
Customer experience
McMaster
ACS Go
Bugs and requests
McMaster
Reported bugs
25 issues- 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
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- Occasionally freezes and doesn't respond to touch
- App is a little buggy
- Latest update won't load
- No estimate of shipping costs before completion of purchase
- App hijacks clicked URLs
- App will not open
- Shows 'No internet connection' when using the app
- Checkout screen has bugs
- Asks to enter ship to address even if shown
- Cannot enter credit card information
- Placing an order is a real pain
- Kept asking for the same things to be entered over and over
- Cart is terrible, no clear way to view items
- Shipping methods don't have predetermined options
- Forward parts request doesn't work
- Cannot save a copy on phone
- App doesn't show saved orders from website
- Missing order history and tracking
- Cannot print item page
- App doesn't show saved orders
Requested features
11 requests- 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
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- Add links for CAD files like on the website
- Add general search functionality
- Add ability to print
- Add order history and tracking
- Add PDF drawing download
- Add access to saved orders
ACS Go
Not enough reviews yet to summarise bugs or requests.
In-app purchases
McMaster
No in-app purchases
ACS Go
No in-app purchases









