Comparison

Ritchie Bros. vs Cat® SIS2GO

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ritchie Bros.

This app allows users to buy and sell heavy equipment and trucks through online auctions. Browse a vast inventory, track items, view detailed specs, and bid in real-time from anywhere. It's designed for professionals in construction, logistics, and farming.

Highlights
  • Browse thousands of equipment listings
  • Personalized watchlists and notifications
  • Detailed equipment specs and inspection reports
  • Real-time online bidding
  • Live auction streaming
  • Live auctioneer audio
Read full description

Bid & Buy Wherever You Are Sign in with your Ritchie Bros. account or create one, and take the marketplace with you. Find equipment fast, track it your way, and bid directly from your phone. Smart search suggestions and a revamped browsing experience put more inventory in view, so you find what you need faster. Save any search and check My RB to see what's new since you last looked. When you're ready to bid, Bid Focus Mode keeps you in it - swipe to place a bid, see instantly if you're winning or outbid, and jump back into the action without losing your place. Follow closing lots in real time with Live Auctions, and place a one-tap bid the second it's your turn. Every listing comes with a revamped inspection report and full photo library, so you make the call before you bid. Track everything from My RB: your bids, your watchlist, and your saved searches - synced whether you're on web, mobile, or in your app. Review your bidding limit and raise it right from the app when you're ready to go bigger. No redirecting to a browser. Everything happens here. Download the Ritchie Bros. app today.

About

Cat® SIS2GO

Access essential manuals and order parts for your Cat equipment. A subscription unlocks detailed service information, including troubleshooting guides and repair procedures, even offline.

Highlights
  • Operation and Maintenance Manuals
  • Parts Manuals
  • Parts identification and ordering
  • Service Manual information
  • Troubleshooting guides
  • Repair procedures
  • Schematics
Features
Read full description

The Cat® SIS2GO app helps you maintain, troubleshoot, and repair your Cat equipment. Two levels of SIS2GO access are available: • Cat Operation and Maintenance Manuals, Parts Manuals, and the ability to identify, verify and seamlessly order Cat parts from independent Cat dealers are available to all users at no charge. • An affordable monthly or annual subscription (offered by Caterpillar) gives access to comprehensive Cat Service Manual information. The subscription provides troubleshooting guides, step-by-step repair procedures, tooling information, hydraulic and electrical schematics, and more. Access to service manual information in SIS2GO is included with a SIS 2.0 subscription (offered by Cat dealers). Optimized for mobile devices, SIS2GO offers a simple, intuitive, and efficient user interface to access Service, Parts, and Operation and Maintenance Manual information. SIS2GO downloaded content is accessible whether you’re connected or not, so you can rely on SIS2GO even when working on the most remote job site. And for any purchases, following is the terms Payment will be charged to iTunes Account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at-least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You may manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. For additional information, please read our Privacy Policy & EULA - https://www.cat.com/en_US/support/maintenance/sis2go-app/legal-terms-and-conditions.html Supported Languages: English (English), Français (French), Deutsch (German), Bahasa Indonesia (Indonesian), Italiano (Italian), Português (Portuguese), 简体中文 (Simplified Chinese), Español (Spanish), 日本語 (Japanese), русский (Russian)

Screenshots

Ritchie Bros.4 screens
Cat® SIS2GO4 screens

Verdict

The call

The clearest difference is rating: Ritchie Bros. at 4.8 against Cat® SIS2GO's 2.2. Ritchie Bros. also leads on in-app purchases (none vs 27) and review sentiment (38% vs 11%). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cat® SIS2GO sells 27 in-app purchases, starting at $0.99 per month. Ritchie Bros. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ritchie Bros. holds the better App Store score, 4.8 against 2.2. That said, the two scores are not equally well evidenced: Ritchie Bros. has 18K ratings behind it against 94, so its average is the more settled of the two. Written reviews point the same way: 38% of Ritchie Bros.'s written reviews are positive against 11% of Cat® SIS2GO's.

UpkeepUpdate frequency

Ritchie Bros. ships an update every 3 weeks, Cat® SIS2GO every 6 weeks. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Ritchie Bros. versus Cat® SIS2GO: the parameters behind the verdict, then further details
ParameterRitchie Bros.Cat® SIS2GO
PriceFreeFree
Rating4.8 (18K ratings) — better2.2 (94 ratings)
Positive reviews37.9% of reviews — better10.8% of reviews
Number of ratings18K — better94
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size101 MB195 MB
Age rating4+4+
DeveloperRitchie Bros.Caterpillar Inc.

Customer experience

Ritchie Bros.

All ratings17,737 ratings
Positive96.1%
Neutral2.0%
Negative1.9%
Written reviews195 reviews
Positive37.9%
Neutral11.3%
Negative50.8%

Cat® SIS2GO

All ratings94 ratings
Positive27.7%
Neutral2.1%
Negative70.2%
Written reviews74 reviews
Positive10.8%
Neutral0.0%
Negative89.2%

User reviews

Ritchie Bros.

From 18K App Store ratings

What we love

  • 👍 Great service and excellent quality of vehicles
  • 🚀 Fantastic and easy-to-use app
  • 🚀 Efficient bidding process
  • 🚀 Convenient to use on the go

Room to improve

  • 🐛 Constant crashes and technical issues
  • 🐛 App not saving user information
  • 🐛 Unreliable connection during live bidding
  • 🔍 Difficult to navigate and search
  • 🔍 Removed useful features like category filters

Cat® SIS2GO

From 94 App Store ratings

What we love

  • 📚 Comprehensive technical documentation and repair guides
  • 🔧 Useful troubleshooting information and torque specifications
  • 📦 Convenient parts ordering and availability checking
  • ⚡ Works well when functioning properly
  • 🏪 Quick access to dealer branch information

Room to improve

  • 🐛 Frequent crashes and white screen freezes
  • 🔐 Persistent login loops and authentication failures
  • ⏳ Extremely slow loading times and freezing
  • 📱 Severe iOS/iPad compatibility issues
  • ❌ App fails to launch past splash screen

Bugs and requests

Ritchie Bros.

Reported bugs

4 issues
  • Login issues after updates
  • Watchlist items not syncing or disappearing
  • Inability to delete watched items
  • Images not loading or displaying properly

Requested features

6 requests
  • Live feature for auctions
  • Option to delete watched items after bidding
  • Ability to search by serial number
  • Auction results available in the app
  • Easier way to manage watchlist
Show 1 more
  • Restore old app layout and features

Cat® SIS2GO

Reported bugs

13 issues
  • App stuck on SIS2GO logo splash screen
  • Login credentials not recognized despite valid accounts
  • Endless login loop after authentication
  • White screen crashes during operation
  • Downloads freeze and fail to complete
Show 8 more
  • App crashes when accessing specific machine information
  • Incompatibility with iOS 17+ and M1 MacBook Air
  • Account creation failures
  • App won't open or load on iPhone and iPad
  • Crashes after recent Apple OS updates
  • Files refuse to download on any network connection
  • Inability to access previously downloaded machines
  • Cookie acceptance loop causing repeated login screens

Requested features

6 requests
  • Improve QR code scanner functionality
  • Better image quality and zoom capability for diagrams
  • Complete offline access to downloaded manuals
  • Accurate parts labeling and organization
  • Support for more machine models and serial numbers
Show 1 more
  • Subscription model transparency and clarity

In-app purchases

None

Ritchie Bros.

No in-app purchases

27 purchases

Cat® SIS2GO

Subscriptions27
  • Retail Limited Monthly 1$0.991 Month
  • Retail Limited1 monthly$0.991 Month
  • Retail Limited Yearly 1$1.991 Year
Show 24 more
  • Limited Retail1 Yearly$1.991 Year
  • SIS2GO Subscription 1 Monthly$14.991 Month
  • SIS2GO Subscription 2 Monthly$14.991 Month
  • SIS2GO Subscription 3 Monthly$14.991 Month
  • SIS2GO Subscription 4 Monthly$14.991 Month
  • Retail Exp Product 8 Monthly$14.991 Month
  • Retail Exp Product 10 Monthly$14.991 Month
  • SIS2GO Subscription 13 Monthly$14.991 Month
  • SIS2GO Subscription 10 Monthly$14.991 Month
  • SIS2GO Subscription 12 Monthly$14.991 Month
  • SIS2GO Subscription 9 Monthly$14.991 Month
  • SIS2GO Subscription 6 Monthly$14.991 Month
  • SIS2GO Subscription 8 Monthly$14.991 Month
  • SIS2GO Subscription 7 Monthly$14.991 Month
  • SIS2GO Subscription 5 Monthly$14.991 Month
  • SIS2GO Subscription 1 Yearly$149.991 Year
  • SIS2GO Subscription 2 Yearly$149.991 Year
  • SIS2GO Subscription 3 Yearly$149.991 Year
  • Retail Exp Product 10 Yearly$149.991 Year
  • Retail Exp Product 8 Yearly$149.991 Year
  • Retail Exp Product 9 Yearly$149.991 Year
  • SIS2GO Subscription 6 Yearly$149.991 Year
  • SIS2GO Subscription 4 Yearly$149.991 Year
  • SIS2GO Subscription 5 Yearly$149.991 Year

Questions

Is Ritchie Bros. free?
Ritchie Bros. is free to download, with no in-app purchases.
Is Cat® SIS2GO free?
Cat® SIS2GO is free to download, with in-app purchases available.
Which has better reviews, Ritchie Bros. or Cat® SIS2GO?
Ritchie Bros. is rated higher. Ritchie Bros. averages 4.8 out of 5 from 18K ratings, while Cat® SIS2GO averages 2.2 from 94 ratings.
Do Ritchie Bros. or Cat® SIS2GO have ads?
Neither Ritchie Bros. nor Cat® SIS2GO shows ads.
Which is updated more often, Ritchie Bros. or Cat® SIS2GO?
Ritchie Bros. ships an update every 3 weeks, and Cat® SIS2GO every 6 weeks. Most recently, Ritchie Bros. was updated on October 29, 2026 and Cat® SIS2GO on October 27, 2026.

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