# PLUS+1® Service Tool vs Diagnostic App

PLUS+1® Service Tool and Diagnostic App are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

PLUS+1® Service Tool ships an update every 4 months, Diagnostic App every 7 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | PLUS+1® Service Tool | Diagnostic App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/plus-plus-1-service-tool/id1237608220/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free | — |
| Size | 57 MB | 60 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Tesmec S.p.a.](https://appshunter.io/developer/1780977610) |

## What reviewers say

### PLUS+1® Service Tool

[App page](https://appshunter.io/ios/app/plus-plus-1-service-tool/id1237608220)

This tool allows for diagnostics and parameter downloads to electronic components. It connects to controllers for performance logging and tuning, streamlining the development of advanced machinery.

**Highlights:** Perform diagnostics on electronic components, Download applications to controllers, Download parameters to controllers, Log controller performance, Tune controller performance, Accelerate development process

**Features:** macOS Compatibility

**In-app purchases:** none


### Diagnostic App

[App page](https://appshunter.io/ios/app/diagnostic-app/id6738472668)

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

**In-app purchases:** none


## Frequently asked questions

### Is PLUS+1® Service Tool free?

PLUS+1® Service Tool is free to download, with no in-app purchases.

### Is Diagnostic App free?

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

### Do PLUS+1® Service Tool or Diagnostic App have ads?

Neither PLUS+1® Service Tool nor Diagnostic App shows ads.

### Which is updated more often, PLUS+1® Service Tool or Diagnostic App?

PLUS+1® Service Tool ships an update every 4 months, and Diagnostic App every 7 months. Most recently, PLUS+1® Service Tool was updated on September 14, 2026 and Diagnostic App on September 21, 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.*