# Schlabach Concrete Services vs Debris Optics

The clearest difference is update cadence: Debris Optics at every 3 months against Schlabach Concrete Services's every 9 months. Debris Optics also leads on device support. Schlabach Concrete Services's advantage is iOS requirement (12.4 vs 15.1). On price 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.

Schlabach Concrete Services ships an update every 9 months, Debris Optics every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Schlabach Concrete Services | Debris Optics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 87 MB | 105 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Brokrete inc](https://appshunter.io/developer/1353021194) | [Volkert, Inc.](https://appshunter.io/developer/1778251051) |

## What reviewers say

### Schlabach Concrete Services

[App page](https://appshunter.io/ios/app/schlabach-concrete-services/id6479255266)

**In-app purchases:** none


### Debris Optics

[App page](https://appshunter.io/ios/app/debris-optics/id6737845219)

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

**In-app purchases:** none


## Frequently asked questions

### Is Schlabach Concrete Services free?

Schlabach Concrete Services is free to download, with no in-app purchases.

### Is Debris Optics free?

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

### Which is updated more often, Schlabach Concrete Services or Debris Optics?

Schlabach Concrete Services ships an update every 9 months, and Debris Optics every 3 months. Most recently, Schlabach Concrete Services was updated on October 24, 2026 and Debris Optics on October 25, 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.*