# TurboTool® vs Marshal

The clearest difference is iOS requirement: TurboTool® at 12.0 against Marshal's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

TurboTool® ships an update every 3 months, Marshal every 2 months. The most recent releases landed on September 22, 2026 and July 16, 2026 respectively.

## The numbers

| Metric | TurboTool® | Marshal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (16 ratings)](https://appshunter.io/ios/app/turbotool/id1006539543/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 158 MB | 241 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Control Techniques Limited](https://appshunter.io/developer/577139804) |

## What reviewers say

### TurboTool®

[App page](https://appshunter.io/ios/app/turbotool/id1006539543)

This app assists service technicians in diagnosing and troubleshooting Danfoss Turbocor® compressors in the field. It helps identify symptoms, explore potential causes, and provides recommended next steps, along with quick reference charts and service literature.

**Highlights:** Compressor component diagnosis, Symptom identification and cause analysis, Recommended troubleshooting steps, Access to quick reference charts, Service literature and manuals, Spare parts identification via scanning, Service videos for component repair

**Features:** macOS Compatibility

**In-app purchases:** none


### Marshal

[App page](https://appshunter.io/ios/app/marshal/id1523682436)

**In-app purchases:** none


## Frequently asked questions

### Is TurboTool® free?

TurboTool® is free to download, with no in-app purchases.

### Is Marshal free?

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

### Do TurboTool® or Marshal have ads?

Neither TurboTool® nor Marshal shows ads.

### Which is updated more often, TurboTool® or Marshal?

TurboTool® ships an update every 3 months, and Marshal every 2 months. Most recently, TurboTool® was updated on September 22, 2026 and Marshal on July 16, 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.*