# EcoTimer vs Helios FDR

The clearest difference is review sentiment: EcoTimer at 25% against Helios FDR's 0%. Helios FDR's advantage is iOS requirement (12.0 vs 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.

EcoTimer ships an update every 8 months, Helios FDR every 7 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | EcoTimer | Helios FDR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 7 months** |
| Monetization | Free | Free |
| Size | 22 MB | 78 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kermi GmbH](https://appshunter.io/developer/879996391) | [Helios Ventilatoren GmbH + Co KG](https://appshunter.io/developer/1553902986) |

## What reviewers say

### 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


### Helios FDR

[App page](https://appshunter.io/ios/app/helios-fdr/id1553902744)

This application allows users to intuitively customize and monitor their Helios differential humidity control systems. Users can define humidity and temperature setpoints, configure weekly programs for sleep cycles, and log data for up to four weeks. It is designed to manage multiple FDR systems.

**Highlights:** Customize humidity and temperature setpoints, Configure weekly programs for sleep cycles, Log and export temperature/humidity data, Manage multiple FDR systems, Define minimum room temperature

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

**In-app purchases:** none


## Frequently asked questions

### Is EcoTimer free?

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

### Is Helios FDR free?

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

### Do EcoTimer or Helios FDR have ads?

Neither EcoTimer nor Helios FDR shows ads.

### Which is updated more often, EcoTimer or Helios FDR?

EcoTimer ships an update every 8 months, and Helios FDR every 7 months. Most recently, EcoTimer was updated on November 3, 2026 and Helios FDR 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.*