# HeatNext vs ETHERMA° SMART APP

The clearest difference is in-app purchases: ETHERMA° SMART APP at none against HeatNext's 4. ETHERMA° SMART APP also leads on update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HeatNext sells 4 in-app purchases, starting at $1.99 per month. ETHERMA° SMART APP asks for nothing beyond the download.

HeatNext ships an update every 2 months, ETHERMA° SMART APP every 2 weeks. The most recent releases landed on September 15, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | HeatNext | ETHERMA° SMART APP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 32 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

[App page](https://appshunter.io/ios/app/heatnext/id1440372440)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Package | $1.99 | per month |
| Advanced Package | $3.99 | per month |
| Plus Package | $18.99 | per year |
| Advanced Package | $37.99 | per year |


### 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 free?

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

### Is ETHERMA° SMART APP free?

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

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

Neither HeatNext nor ETHERMA° SMART APP shows ads.

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

HeatNext ships an update every 2 months, and ETHERMA° SMART APP every 2 weeks. Most recently, HeatNext was updated on September 15, 2026 and ETHERMA° SMART APP on June 11, 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.*