# STEINEL DCS™ vs Roll Length Calc

The clearest difference is review sentiment: Roll Length Calc at 100% against STEINEL DCS™'s 50%. STEINEL DCS™'s advantage is price (Free vs $0.99) and update cadence (every 2 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

STEINEL DCS™ is free to download; Roll Length Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

STEINEL DCS™ ships an update every 2 weeks, Roll Length Calc every 2 months. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | STEINEL DCS™ | Roll Length Calc |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/steinel-dcs/id6470199158/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 27 MB | 2 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Steinel GmbH](https://appshunter.io/developer/1030890616) | [Konstantin Khoroshun](https://appshunter.io/developer/1476700024) |

## What reviewers say

### STEINEL DCS™

[App page](https://appshunter.io/ios/app/steinel-dcs/id6470199158)

This app enables wireless commissioning of lighting, plug load, and HVAC systems through a Bluetooth connection. It integrates occupancy sensors, photo sensors, and switches for code-compliant solutions. Features include relay control, dimming zones, and daylight harvesting.

**Highlights:** Wireless commissioning via Bluetooth, Load and HVAC integration, Occupancy and photo sensor integration, 3 x 20A Relays with current monitoring, 3 x 0-10v Dimming Zones, Daylight Harvesting, BACnet integration

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

**In-app purchases:** none


### Roll Length Calc

[App page](https://appshunter.io/ios/app/roll-length-calc/id6754931640)

Calculate the length and area of rolled materials with precision. Save, search, and manage your calculations with detailed reports and notes. Supports multiple units and offers a user-friendly interface for professionals.

**Highlights:** Calculate roll length from diameters and thickness, Compute material surface area, Save calculations with custom titles and types, Add notes to reports, Search through saved reports, Calculate roll diameter from length, Support for multiple units of measurement

**In-app purchases:** none


## Frequently asked questions

### Is STEINEL DCS™ free?

STEINEL DCS™ is free to download, with no in-app purchases.

### Is Roll Length Calc free?

Roll Length Calc costs $0.99, with no in-app purchases.

### Do STEINEL DCS™ or Roll Length Calc have ads?

Neither STEINEL DCS™ nor Roll Length Calc shows ads.

### Which is updated more often, STEINEL DCS™ or Roll Length Calc?

STEINEL DCS™ ships an update every 2 weeks, and Roll Length Calc every 2 months. Most recently, STEINEL DCS™ was updated on October 31, 2026 and Roll Length Calc on October 30, 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.*