# PowerAssist™ vs Cat® SIS2GO

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.

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.

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.

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.

## The numbers

| Metric | PowerAssist™ | Cat® SIS2GO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (16 ratings)](https://appshunter.io/ios/app/powerassist/id568415084/reviews)** | [2.2 (90 ratings)](https://appshunter.io/ios/app/cat-sis2go/id1528609895/reviews) |
| Number of ratings | 16 | **90** |
| Positive reviews | **33.3% of reviews** | 9.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 176 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Deere](https://appshunter.io/developer/411445733) | [Caterpillar Inc.](https://appshunter.io/developer/571668770) |

## What reviewers say

### PowerAssist™

[App page](https://appshunter.io/ios/app/powerassist/id568415084)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Cat® SIS2GO

[App page](https://appshunter.io/ios/app/cat-sis2go/id1528609895)

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:** Vision Pro support

**In-app purchases (27)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retail Limited Monthly 1 | $0.99 | per month |
| Retail Limited1 monthly | $0.99 | per month |
| Retail Limited Yearly 1 | $1.99 | per year |
| Limited Retail1 Yearly | $1.99 | per year |
| SIS2GO Subscription 1 Monthly | $14.99 | per month |
| SIS2GO Subscription 2 Monthly | $14.99 | per month |
| SIS2GO Subscription 3 Monthly | $14.99 | per month |
| SIS2GO Subscription 4 Monthly | $14.99 | per month |
| Retail Exp Product 8 Monthly | $14.99 | per month |
| Retail Exp Product 10 Monthly | $14.99 | per month |
| SIS2GO Subscription 13 Monthly | $14.99 | per month |
| SIS2GO Subscription 10 Monthly | $14.99 | per month |
| SIS2GO Subscription 12 Monthly | $14.99 | per month |
| SIS2GO Subscription 9 Monthly | $14.99 | per month |
| SIS2GO Subscription 6 Monthly | $14.99 | per month |
| SIS2GO Subscription 8 Monthly | $14.99 | per month |
| SIS2GO Subscription 7 Monthly | $14.99 | per month |
| SIS2GO Subscription 5 Monthly | $14.99 | per month |
| SIS2GO Subscription 1 Yearly | $149.99 | per year |
| SIS2GO Subscription 2 Yearly | $149.99 | per year |
| SIS2GO Subscription 3 Yearly | $149.99 | per year |
| Retail Exp Product 10 Yearly | $149.99 | per year |
| Retail Exp Product 8 Yearly | $149.99 | per year |
| Retail Exp Product 9 Yearly | $149.99 | per year |
| SIS2GO Subscription 6 Yearly | $149.99 | per year |
| SIS2GO Subscription 4 Yearly | $149.99 | per year |
| SIS2GO Subscription 5 Yearly | $149.99 | per year |

**What reviewers like**

- 📚 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*