# 4HEAT vs SmartEK63

The clearest difference is device support: 4HEAT at 3 against SmartEK63's 1. 4HEAT also leads on iOS requirement (15.0.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 4HEAT | SmartEK63 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 24.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 38 MB | 24 MB |
| Requires iOS | **15.0.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TIEMME ELETTRONICA SRL](https://appshunter.io/developer/1225571704) | [Edilkamin spa](https://appshunter.io/developer/807484606) |

## 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

**In-app purchases:** none


### SmartEK63

[App page](https://appshunter.io/ios/app/smartek63/id1638124836)

**In-app purchases:** none


## Frequently asked questions

### Is 4HEAT free?

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

### Is SmartEK63 free?

SmartEK63 is free to download, with no in-app purchases.

### Do 4HEAT or SmartEK63 have ads?

Neither 4HEAT nor SmartEK63 shows ads.

### Which is updated more often, 4HEAT or SmartEK63?

4HEAT ships an update every 3 months, and SmartEK63 every 3 months. Most recently, 4HEAT was updated on September 16, 2026 and SmartEK63 on September 14, 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.*