# Reflex Control Smart vs Helios FDR

The clearest difference is update cadence: Reflex Control Smart at every 6 weeks against Helios FDR's every 7 months. 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.

Reflex Control Smart ships an update every 6 weeks, Helios FDR every 7 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Reflex Control Smart | Helios FDR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | — | Free |
| Size | 132 MB | 78 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Reflex Winkelmann GmbH](https://appshunter.io/developer/1434280898) | [Helios Ventilatoren GmbH + Co KG](https://appshunter.io/developer/1553902986) |

## What reviewers say

### Reflex Control Smart

[App page](https://appshunter.io/ios/app/reflex-control-smart/id1434280899)

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

**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 Reflex Control Smart free?

Reflex Control Smart 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 Reflex Control Smart or Helios FDR have ads?

Neither Reflex Control Smart nor Helios FDR shows ads.

### Which is updated more often, Reflex Control Smart or Helios FDR?

Reflex Control Smart ships an update every 6 weeks, and Helios FDR every 7 months. Most recently, Reflex Control Smart was updated on October 12, 2026 and Helios FDR on October 7, 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.*