# Diagnostic Tool vs KE2 Service Tool

The clearest difference is review sentiment: Diagnostic Tool at 100% against KE2 Service Tool's 50%. Diagnostic Tool also leads on rating (5.0 vs 4.5) and iOS requirement (11.0 vs 13.0). KE2 Service Tool's advantage is update cadence (every 3 weeks vs every 5 months). On price, ratings volume, 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.

Diagnostic Tool holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 100% of Diagnostic Tool's written reviews are positive against 50% of KE2 Service Tool's.

Diagnostic Tool ships an update every 5 months, KE2 Service Tool every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Diagnostic Tool | KE2 Service Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/diagnostic-tool/id1175329949/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/ke2-service-tool/id6443488406/reviews) |
| Number of ratings | 4 | **8** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 19 MB | 62 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Control Techniques Limited](https://appshunter.io/developer/577139804) | [KE2 Therm Solutions](https://appshunter.io/developer/1646449848) |

## What reviewers say

### Diagnostic Tool

[App page](https://appshunter.io/ios/app/diagnostic-tool/id1175329949)

Quickly resolve error codes for Control Techniques' drives with this tool. It includes wiring diagrams for setup and fault finding, plus direct access to global technical support contact information.

**Highlights:** Error code lookup, Wiring diagrams, Fault finding assistance, Technical support contacts, Supported product list

**Features:** macOS Compatibility

**In-app purchases:** none


### KE2 Service Tool

[App page](https://appshunter.io/ios/app/ke2-service-tool/id6443488406)

This tool enables users to discover and manage KE2 Therm Controllers and Sensors on their local network. It supports both ethernet and wireless connections for seamless device management.

**Highlights:** Local device discovery, Manage KE2 Therm Controllers, Manage KE2 Therm Sensors, Ethernet connection support, Wireless connection support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diagnostic Tool free?

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

### Is KE2 Service Tool free?

KE2 Service Tool is free to download, with no in-app purchases.

### Which has better reviews, Diagnostic Tool or KE2 Service Tool?

Diagnostic Tool is rated higher. Diagnostic Tool averages 5.0 out of 5 from 4 ratings, while KE2 Service Tool averages 4.5 from 8 ratings.

### Do Diagnostic Tool or KE2 Service Tool have ads?

Neither Diagnostic Tool nor KE2 Service Tool shows ads.

### Which is updated more often, Diagnostic Tool or KE2 Service Tool?

Diagnostic Tool ships an update every 5 months, and KE2 Service Tool every 3 weeks. Most recently, Diagnostic Tool was updated on November 2, 2026 and KE2 Service Tool 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.*