# Klimatronik vs Certimy

The clearest difference is in-app purchases: Klimatronik at none against Certimy's 4. Certimy's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Certimy sells 4 in-app purchases, starting at $44.99 per year. Klimatronik asks for nothing beyond the download.

Klimatronik ships an update every 3 months, Certimy every 2 months. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Klimatronik | Certimy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 8 MB | 44 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [KLIMATRONIK, TOV](https://appshunter.io/developer/1538757309) | [EVOLUZIONE OU](https://appshunter.io/developer/1712492731) |

## 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


### Certimy

[App page](https://appshunter.io/ios/app/certimy/id6469706018)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Start Security | $44.99 | per year |
| Premium Security | $59.99 | per year |
| Elite Security | $119.99 | per year |
| Unlimited Security | $229.99 | per year |


## Frequently asked questions

### Is Klimatronik free?

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

### Is Certimy free?

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

### Do Klimatronik or Certimy have ads?

Neither Klimatronik nor Certimy shows ads.

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

Klimatronik ships an update every 3 months, and Certimy every 2 months. Most recently, Klimatronik was updated on October 12, 2026 and Certimy on October 8, 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.*