# Element 4 vs DFF app

The clearest difference is update cadence: Element 4 at every 8 months against DFF app's every 42 months. Element 4 also leads on iOS requirement (9.0 vs 12.0). 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.

Element 4 ships an update every 8 months, DFF app every 42 months. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Element 4 | DFF app |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/element-4/id1360225728/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 42 months |
| Monetization | Free | — |
| Size | 3 MB | 32 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宪卫 苏](https://appshunter.io/developer/896429893) | [Duepi Group srl](https://appshunter.io/developer/979524896) |

## What reviewers say

### Element 4

[App page](https://appshunter.io/ios/app/element-4/id1360225728)

Control your fireplace remotely with this intelligent app. Adjust settings and manage your hearth from your mobile device.

**Highlights:** Intelligent fireplace control, Remote adjustment, Hearth management, Mobile device integration

**Features:** macOS Compatibility

**In-app purchases:** none


### DFF app

[App page](https://appshunter.io/ios/app/dff-app/id1534583111)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Element 4 free?

Element 4 is free to download, with no in-app purchases.

### Is DFF app free?

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

### Do Element 4 or DFF app have ads?

Neither Element 4 nor DFF app shows ads.

### Which is updated more often, Element 4 or DFF app?

Element 4 ships an update every 8 months, and DFF app every 42 months. Most recently, Element 4 was updated on October 4, 2026 and DFF app on September 29, 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.*