# Cat® SIS2GO vs @flow

The clearest difference is review sentiment: @flow at 100% against Cat® SIS2GO's 11%. @flow also leads on rating (4.2 vs 2.2) and in-app purchases (none vs 27). Cat® SIS2GO's advantage is ratings volume (93 vs 5). On price, ads, device support and iOS requirement there is nothing between them.

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

@flow holds the better App Store score, 4.2 against 2.2. That said, the two scores are not equally well evidenced: Cat® SIS2GO has 93 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 11% of Cat® SIS2GO's written reviews are positive against 100% of @flow's.

Cat® SIS2GO ships an update every 6 weeks, @flow every 4 days. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Cat® SIS2GO | @flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (93 ratings)](https://appshunter.io/ios/app/cat-sis2go/id1528609895/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/flow/id1571429531/reviews)** |
| Number of ratings | **93** | 5 |
| Positive reviews | 10.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 176 MB | 208 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Caterpillar Inc.](https://appshunter.io/developer/571668770) | [O2O Heavy Inc](https://appshunter.io/developer/1571429533) |

## What reviewers say

### 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


### @flow

[App page](https://appshunter.io/ios/app/flow/id1571429531)

Streamline daily business operations for heavy equipment, trucking fleets, and construction sites. Facilitates trading, networking, and generates essential reports for efficient management.

**Highlights:** Heavy equipment management, Trucking fleet management, Construction site management, Trading activities, Business networking, Report generation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cat® SIS2GO free?

Cat® SIS2GO is free to download, with in-app purchases available.

### Is @flow free?

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

### Which has better reviews, Cat® SIS2GO or @flow?

@flow is rated higher. Cat® SIS2GO averages 2.2 out of 5 from 93 ratings, while @flow averages 4.2 from 5 ratings.

### Do Cat® SIS2GO or @flow have ads?

Neither Cat® SIS2GO nor @flow shows ads.

### Which is updated more often, Cat® SIS2GO or @flow?

Cat® SIS2GO ships an update every 6 weeks, and @flow every 4 days. Most recently, Cat® SIS2GO was updated on October 19, 2026 and @flow on October 13, 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.*