# Zehnder Connect vs EcoTimer

The clearest difference is review sentiment: EcoTimer at 25% against Zehnder Connect's 0%. Zehnder Connect's advantage is update cadence (every 4 months vs every 8 months) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Zehnder Connect ships an update every 4 months, EcoTimer every 8 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Zehnder Connect | EcoTimer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 38 MB | 22 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zehnder Group AG](https://appshunter.io/developer/1104291807) | [Kermi GmbH](https://appshunter.io/developer/879996391) |

## What reviewers say

### Zehnder Connect

[App page](https://appshunter.io/ios/app/zehnder-connect/id1198950940)

Control and manage your Zehnder radiators remotely from your smartphone or tablet. Optimize your home's thermal comfort and energy consumption with customizable schedules and settings.

**Highlights:** Remote radiator management, Customizable daily/weekly schedules, Personalize factory settings, Define custom scenarios (home, away, sleep), Activate functions like pre-heating, Monitor room temperature, Open window detection

**Features:** macOS Compatibility

**In-app purchases:** none


### EcoTimer

[App page](https://appshunter.io/ios/app/ecotimer/id1499364303)

This app allows you to remotely program and control heating devices via Bluetooth. You can create custom weekly schedules, set operating modes like 'Off', 'Eco', and 'Comfort', and adjust temperatures directly from your mobile device.

**Highlights:** Bluetooth connectivity to heating devices, Create custom weekly time programs, Set 'Off', 'Eco', and 'Comfort' modes, Adjust temperatures remotely, Read and adapt existing programs

**In-app purchases:** none


## Frequently asked questions

### Is Zehnder Connect free?

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

### Is EcoTimer free?

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

### Do Zehnder Connect or EcoTimer have ads?

Neither Zehnder Connect nor EcoTimer shows ads.

### Which is updated more often, Zehnder Connect or EcoTimer?

Zehnder Connect ships an update every 4 months, and EcoTimer every 8 months. Most recently, Zehnder Connect was updated on November 2, 2026 and EcoTimer 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.*