# DMXCalc vs ETC Library

DMXCalc and ETC Library both sit at 3.6 stars, but that hides the real split: 69% of DMXCalc's written reviews are positive against 0% of ETC Library's. DMXCalc also leads on iOS requirement (9.0 vs 17). ETC Library's advantage is price (Free vs $1.99) and update cadence (every 3 months vs every 8 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

ETC Library is free to download; DMXCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.6 for DMXCalc against 3.8 for ETC Library. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews are what separate them: 69% of DMXCalc's written reviews are positive against 0% of ETC Library's.

DMXCalc ships an update every 8 months, ETC Library every 3 months. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | DMXCalc | ETC Library |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [3.6 (7 ratings)](https://appshunter.io/ios/app/dmxcalc/id285187693/reviews) | **[3.8 (4 ratings)](https://appshunter.io/ios/app/etc-library/id733300518/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | **69.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 68 MB |
| Requires iOS | **9.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [West Side Systems](https://appshunter.io/developer/285187696) | [Electronic Theatre Controls, Inc.](https://appshunter.io/developer/318210459) |

## What reviewers say

### DMXCalc

[App page](https://appshunter.io/ios/app/dmxcalc/id285187693)

This app simplifies DMX address calculations for entertainment lighting equipment. It helps determine absolute addresses, manage fixture blocks, and convert DMX values to percentages and hexadecimal. It also includes a dip switch calculator for easy configuration.

**Highlights:** DMX address calculation, Universe and device address lookup, Increment/decrement by block size, Dip switch configuration tool, Block addressing for multiple fixtures, DMX level value reference

**Features:** macOS Compatibility

**In-app purchases:** none


### ETC Library

[App page](https://appshunter.io/ios/app/etc-library/id733300518)

Access technical documentation for a wide range of products. Browse and share datasheets, application sheets, and brochures organized by product family. This virtual binder provides quick access to essential product information.

**Highlights:** Access to hundreds of technical documents, Organized by product family and category, View datasheets, application sheets, and brochures, Easy document sharing, Offline access to downloaded documents

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DMXCalc free?

DMXCalc costs $1.99, with no in-app purchases.

### Is ETC Library free?

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

### Which has better reviews, DMXCalc or ETC Library?

ETC Library is rated higher. DMXCalc averages 3.6 out of 5 from 7 ratings, while ETC Library averages 3.8 from 4 ratings.

### Do DMXCalc or ETC Library have ads?

Neither DMXCalc nor ETC Library shows ads.

### Which is updated more often, DMXCalc or ETC Library?

DMXCalc ships an update every 8 months, and ETC Library every 3 months. Most recently, DMXCalc was updated on October 7, 2026 and ETC Library on October 21, 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.*