# ZVPLAN vs Helios FDR

The clearest difference is update cadence: ZVPLAN at fortnightly against Helios FDR's every 7 months. Helios FDR's advantage is iOS requirement (12.0 vs 15). 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.

ZVPLAN ships an update fortnightly, Helios FDR every 7 months. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ZVPLAN | Helios FDR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | — | Free |
| Size | 45 MB | 78 MB |
| Requires iOS | 15 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ConSoft](https://appshunter.io/developer/397747217) | [Helios Ventilatoren GmbH + Co KG](https://appshunter.io/developer/1553902986) |

## What reviewers say

### ZVPLAN

[App page](https://appshunter.io/ios/app/zvplan/id1060104073)

**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 ZVPLAN free?

ZVPLAN 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 ZVPLAN or Helios FDR have ads?

Neither ZVPLAN nor Helios FDR shows ads.

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

ZVPLAN ships an update fortnightly, and Helios FDR every 7 months. Most recently, ZVPLAN was updated on October 29, 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.*