# Cat® Power OnSite vs SEM eSalesTool

The clearest difference is update cadence: SEM eSalesTool at monthly against Cat® Power OnSite's every 3 months. Cat® Power OnSite's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cat® Power OnSite ships an update every 3 months, SEM eSalesTool monthly. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Cat® Power OnSite | SEM eSalesTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/cat-power-onsite/id1438562258/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 30 MB | 217 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Caterpillar Inc.](https://appshunter.io/developer/571668770) | [Caterpillar (Qingzhou) Ltd.](https://appshunter.io/developer/1576318234) |

## What reviewers say

### Cat® Power OnSite

[App page](https://appshunter.io/ios/app/cat-power-onsite/id1438562258)

Connect to your engine wirelessly to transfer data to your mobile device. This app helps maximize the value of your assets, regardless of fleet size or digital experience. Requires a specific dongle to function.

**Highlights:** Wireless engine data transfer, CAN/J1939 data link connection, Maximize asset value, Fleet management support, Requires specific dongle

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SEM eSalesTool

[App page](https://appshunter.io/ios/app/sem-esalestool/id6670752829)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cat® Power OnSite free?

Cat® Power OnSite is free to download, with no in-app purchases.

### Is SEM eSalesTool free?

SEM eSalesTool is free to download, with no in-app purchases.

### Do Cat® Power OnSite or SEM eSalesTool have ads?

Neither Cat® Power OnSite nor SEM eSalesTool shows ads.

### Which is updated more often, Cat® Power OnSite or SEM eSalesTool?

Cat® Power OnSite ships an update every 3 months, and SEM eSalesTool monthly. Most recently, Cat® Power OnSite was updated on October 6, 2026 and SEM eSalesTool on October 3, 2026.

---

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