# HeatNext BT vs ETHERMA° SMART APP

The clearest difference is update cadence: ETHERMA° SMART APP at every 2 weeks against HeatNext BT's every 6 weeks. 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.

HeatNext BT ships an update every 6 weeks, ETHERMA° SMART APP every 2 weeks. The most recent releases landed on September 14, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | HeatNext BT | ETHERMA° SMART APP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 21 MB | 40 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nomnio](https://appshunter.io/developer/1440372439) | [ETHERMA Holding GmbH](https://appshunter.io/developer/1606968285) |

## What reviewers say

### HeatNext BT

[App page](https://appshunter.io/ios/app/heatnext-bt/id6449220210)

**Features:** macOS Compatibility

**In-app purchases:** none


### ETHERMA° SMART APP

[App page](https://appshunter.io/ios/app/etherma-smart-app/id6477389731)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HeatNext BT free?

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

### Is ETHERMA° SMART APP free?

ETHERMA° SMART APP is free to download, with no in-app purchases.

### Do HeatNext BT or ETHERMA° SMART APP have ads?

Neither HeatNext BT nor ETHERMA° SMART APP shows ads.

### Which is updated more often, HeatNext BT or ETHERMA° SMART APP?

HeatNext BT ships an update every 6 weeks, and ETHERMA° SMART APP every 2 weeks. Most recently, HeatNext BT was updated on September 14, 2026 and ETHERMA° SMART APP on June 11, 2026.

---

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