# iFire vs Harmoni Heating

The clearest difference is review sentiment: iFire at 76% against Harmoni Heating's 27%. iFire also leads on update cadence (every 6 days vs every 2 months). Harmoni Heating's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iFire sells 2 in-app purchases, starting at $1.99 per month. Harmoni Heating asks for nothing beyond the download.

iFire ships an update every 6 days, Harmoni Heating every 2 months. The most recent releases landed on September 10, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | iFire | Harmoni Heating |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/ifire/id1171368453/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **76.3% of reviews** | 26.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 55 MB | 80 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kernow Software](https://appshunter.io/developer/551554897) | [Home Domotic Developments, S.L.](https://appshunter.io/developer/1481462876) |

## What reviewers say

### iFire

[App page](https://appshunter.io/ios/app/ifire/id1171368453)

This app provides real-time team availability for volunteer firefighters, allowing them to quickly book on and off duty. It instantly updates availability across all team members' devices, making it easy to see who is available for call-outs. Optional subscription unlocks advanced statistics and notification features.

**Highlights:** Update availability instantly, View station crew availability, Set periods of unavailability, Receive low crew notifications, Track weekly availability hours

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iFire Subscription | $1.99 | per month |
| iFire Annual subcription | $19.99 | per year |


### Harmoni Heating

[App page](https://appshunter.io/ios/app/harmoni-heating/id1481462803)

Easily manage your smart radiators from anywhere. Group devices by zone, adjust temperatures remotely, and personalize heating schedules for energy savings. Monitor consumption and costs with detailed statistics.

**Highlights:** Remote temperature adjustment, Zone grouping for radiators, Customizable heating schedules, Energy consumption monitoring, Preset heating programs, Screen color customization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iFire free?

iFire is free to download, with in-app purchases available.

### Is Harmoni Heating free?

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

### Do iFire or Harmoni Heating have ads?

Neither iFire nor Harmoni Heating shows ads.

### Which is updated more often, iFire or Harmoni Heating?

iFire ships an update every 6 days, and Harmoni Heating every 2 months. Most recently, iFire was updated on September 10, 2026 and Harmoni Heating on June 1, 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.*