# Inch To Points vs Cat® SIS2GO

The clearest difference is price: Cat® SIS2GO at Free against Inch To Points's $0.99. Cat® SIS2GO also leads on update cadence (every 6 weeks vs every 38 months). Inch To Points's advantage is in-app purchases (none vs 10). On ads, device support and iOS requirement there is nothing between them.

Cat® SIS2GO is free to download; Inch To Points costs $0.99 up front. Cat® SIS2GO sells 10 in-app purchases, starting at $14.99 per month. Inch To Points asks for nothing beyond the download.

Inch To Points ships an update every 38 months, Cat® SIS2GO every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Inch To Points | Cat® SIS2GO |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[2.2 (94 ratings)](https://appshunter.io/ios/app/cat-sis2go/id1528609895/reviews)** |
| Number of ratings | — | **94** |
| Positive reviews | — | 10.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 195 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Manfred Breede](https://appshunter.io/developer/414696754) | [Caterpillar Inc.](https://appshunter.io/developer/571668770) |

## What reviewers say

### Inch To Points

[App page](https://appshunter.io/ios/app/inch-to-points/id432225236)

**Features:** macOS Compatibility

**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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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 |
| 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 |

**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 Inch To Points free?

Inch To Points costs $0.99, with no in-app purchases.

### Is Cat® SIS2GO free?

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

### Do Inch To Points or Cat® SIS2GO have ads?

Neither Inch To Points nor Cat® SIS2GO shows ads.

### Which is updated more often, Inch To Points or Cat® SIS2GO?

Inch To Points ships an update every 38 months, and Cat® SIS2GO every 6 weeks. Most recently, Inch To Points was updated on November 1, 2026 and Cat® SIS2GO on November 3, 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.*