# Klimatronik vs SchoolNext

The clearest difference is iOS requirement: Klimatronik at 15.6 against SchoolNext's 18.2. 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.

Klimatronik ships an update every 3 months, SchoolNext every 4 months. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Klimatronik | SchoolNext |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 8 MB | 51 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KLIMATRONIK, TOV](https://appshunter.io/developer/1538757309) | [Jaskamal Singh](https://appshunter.io/developer/1196962185) |

## What reviewers say

### Klimatronik

[App page](https://appshunter.io/ios/app/klimatronik/id1538757307)

Control your Klimatronik heat recovery ventilation system remotely via Wi-Fi. Adjust fan speeds, set operating modes, monitor air quality, temperature, and humidity, and view historical data. Create custom schedules and timers for optimal indoor climate management.

**Highlights:** Remote Wi-Fi control, Adjustable fan speeds, Operating mode selection, Air quality monitoring (CO2, TVOC), Temperature and humidity monitoring, Weekly scheduling, Timer functions

**Features:** macOS Compatibility

**In-app purchases:** none


### SchoolNext

[App page](https://appshunter.io/ios/app/schoolnext/id6755873307)

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

**In-app purchases:** none


## Frequently asked questions

### Is Klimatronik free?

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

### Is SchoolNext free?

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

### Do Klimatronik or SchoolNext have ads?

Neither Klimatronik nor SchoolNext shows ads.

### Which is updated more often, Klimatronik or SchoolNext?

Klimatronik ships an update every 3 months, and SchoolNext every 4 months. Most recently, Klimatronik was updated on September 27, 2026 and SchoolNext on September 23, 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.*