# Schrack Smart Building vs ASZ Profi

The clearest difference is ads: Schrack Smart Building at none against ASZ Profi's shown. Schrack Smart Building also leads on iOS requirement (11.4 vs 15.0). On price, update cadence, 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.

Schrack Smart Building ships an update every 5 months, ASZ Profi every 4 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Schrack Smart Building | ASZ Profi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 months** |
| Size | 57 MB | 46 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [evon Smart Home GmbH](https://appshunter.io/developer/1614841754) | [OO Landesabfallverband](https://appshunter.io/developer/1061017706) |

## What reviewers say

### Schrack Smart Building

[App page](https://appshunter.io/ios/app/schrack-smart-building/id956506394)

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

**In-app purchases:** none


### ASZ Profi

[App page](https://appshunter.io/ios/app/asz-profi/id1391139261)

**In-app purchases:** none


## Frequently asked questions

### Is Schrack Smart Building free?

Schrack Smart Building is free to download, with no in-app purchases.

### Is ASZ Profi free?

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

### Do Schrack Smart Building or ASZ Profi have ads?

ASZ Profi shows ads; Schrack Smart Building does not.

### Which is updated more often, Schrack Smart Building or ASZ Profi?

Schrack Smart Building ships an update every 5 months, and ASZ Profi every 4 months. Most recently, Schrack Smart Building was updated on October 26, 2026 and ASZ Profi on October 26, 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.*