Comparison

PowerAssist™ 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

PowerAssist™

Access detailed serial-specific engine information for John Deere equipment. Retrieve engine and aftertreatment details, software versions, manufacturing dates, and emissions certificates by entering the serial number.

Highlights
  • Serial number lookup
  • Engine and aftertreatment info
  • Software version details
  • Manufacturing date
  • Emissions certificates
  • Manuals and catalogs
Features
Read full description

John Deere PowerAssist™ provides serial specific information for your John Deere engine. Enter the serial number to find; engine and after treatment information, engine model, date of manufacture, current/available software, ECU level, manuals, catalogs, option codes, emissions certificates.

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

PowerAssist™4 screens
Cat® SIS2GO4 screens

Verdict

The call

The clearest difference is rating: PowerAssist™ at 3.1 against Cat® SIS2GO's 2.2. PowerAssist™ also leads on in-app purchases (none vs 27) and review sentiment (33% vs 10%). Cat® SIS2GO's advantage is update cadence (every 5 weeks vs every 5 months) and ratings volume (90 vs 16). On price, ads and device support 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. PowerAssist™ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PowerAssist™ holds the better App Store score, 3.1 against 2.2. That said, the two scores are not equally well evidenced: Cat® SIS2GO has 90 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 33% of PowerAssist™'s written reviews are positive against 10% of Cat® SIS2GO's.

UpkeepUpdate frequency

PowerAssist™ ships an update every 5 months, Cat® SIS2GO every 5 weeks. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 3 level
PowerAssist™ versus Cat® SIS2GO: the parameters behind the verdict, then further details
ParameterPowerAssist™Cat® SIS2GO
PriceFreeFree
Rating3.1 (16 ratings) — better2.2 (90 ratings)
Positive reviews33.3% of reviews — better9.7% of reviews
Number of ratings1690 — better
Update frequencyEvery 5 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size12 MB176 MB
Age rating4+4+
DeveloperJohn DeereCaterpillar Inc.

Customer experience

PowerAssist™

All ratings16 ratings
Positive50.0%
Neutral6.3%
Negative43.8%
Written reviews15 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Cat® SIS2GO

All ratings90 ratings
Positive27.8%
Neutral2.2%
Negative70.0%
Written reviews72 reviews
Positive9.7%
Neutral0.0%
Negative90.3%

Bugs and requests

PowerAssist™

Not enough reviews yet to summarise bugs or requests.

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

PowerAssist™

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 PowerAssist™ free?
PowerAssist™ 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, PowerAssist™ or Cat® SIS2GO?
PowerAssist™ is rated higher. PowerAssist™ averages 3.1 out of 5 from 16 ratings, while Cat® SIS2GO averages 2.2 from 90 ratings.
Do PowerAssist™ or Cat® SIS2GO have ads?
Neither PowerAssist™ nor Cat® SIS2GO shows ads.
Which is updated more often, PowerAssist™ or Cat® SIS2GO?
PowerAssist™ ships an update every 5 months, and Cat® SIS2GO every 5 weeks. Most recently, PowerAssist™ was updated on September 20, 2026 and Cat® SIS2GO on September 24, 2026.

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