# KEUCO Sensor vs KE2 Sensor Tool

The clearest difference is update cadence: KE2 Sensor Tool at every 2 weeks against KEUCO Sensor's every 5 months. KEUCO Sensor's advantage is iOS requirement (9.0 vs 17.6). 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.

KEUCO Sensor ships an update every 5 months, KE2 Sensor Tool every 2 weeks. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | KEUCO Sensor | KE2 Sensor Tool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 35 MB | 2 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KEUCO GmbH & Co. KG](https://appshunter.io/developer/463771710) | [KE2 Therm Solutions](https://appshunter.io/developer/1646449848) |

## What reviewers say

### KEUCO Sensor

[App page](https://appshunter.io/ios/app/keuco-sensor/id1581736605)

**Features:** macOS Compatibility

**In-app purchases:** none


### KE2 Sensor Tool

[App page](https://appshunter.io/ios/app/ke2-sensor-tool/id6743175699)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KEUCO Sensor free?

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

### Is KE2 Sensor Tool free?

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

### Do KEUCO Sensor or KE2 Sensor Tool have ads?

Neither KEUCO Sensor nor KE2 Sensor Tool shows ads.

### Which is updated more often, KEUCO Sensor or KE2 Sensor Tool?

KEUCO Sensor ships an update every 5 months, and KE2 Sensor Tool every 2 weeks. Most recently, KEUCO Sensor was updated on October 4, 2026 and KE2 Sensor Tool on October 9, 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.*