# 4HEAT vs MCZ Update

4HEAT and MCZ Update are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

4HEAT ships an update every 3 months, MCZ Update every 2 months. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 4HEAT | MCZ Update |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 24.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 38 MB | 20 MB |
| Requires iOS | **15.0.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TiEmme elettronica](https://appshunter.io/developer/1225571704) | [MCZ GROUP S.P.A.](https://appshunter.io/developer/775203115) |

## What reviewers say

### 4HEAT

[App page](https://appshunter.io/ios/app/4heat/id1193541312)

Control your Tiemme Heating system remotely with this application. Manage your home's temperature and heating schedules from your smartphone or tablet.

**Highlights:** Remote heating system control, Temperature management, Schedule adjustments, Smartphone/tablet compatibility, Tiemme Heating system integration

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

**In-app purchases:** none


### MCZ Update

[App page](https://appshunter.io/ios/app/mcz-update/id6446396619)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 4HEAT free?

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

### Is MCZ Update free?

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

### Do 4HEAT or MCZ Update have ads?

Neither 4HEAT nor MCZ Update shows ads.

### Which is updated more often, 4HEAT or MCZ Update?

4HEAT ships an update every 3 months, and MCZ Update every 2 months. Most recently, 4HEAT was updated on November 2, 2026 and MCZ Update on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*