# iGobo vs ETC Library

The clearest difference is rating: ETC Library at 3.8 against iGobo's 1.5. iGobo's advantage is review sentiment (25% vs 0%) and ratings volume (12 vs 4). On price, update cadence, ads 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.

ETC Library holds the better App Store score, 3.8 against 1.5. Both are backed by a comparable volume of ratings — 12 and 4 respectively. Written reviews complicate that: 25% of iGobo's written reviews are positive against 0% of ETC Library's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | iGobo | ETC Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (12 ratings)](https://appshunter.io/ios/app/igobo/id397032703/reviews) | **[3.8 (4 ratings)](https://appshunter.io/ios/app/etc-library/id733300518/reviews)** |
| Number of ratings | **12** | 4 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 136 MB | 68 MB |
| Requires iOS | **8.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blue Pony Digital](https://appshunter.io/developer/397032706) | [Electronic Theatre Controls, Inc.](https://appshunter.io/developer/318210459) |

## What reviewers say

### iGobo

[App page](https://appshunter.io/ios/app/igobo/id397032703)

Access a vast library of lighting design patterns, including metal and glass gobos. Search, compare, and organize your favorites. Easily share your selections via email.

**Highlights:** Extensive gobo library (2000+ designs), Search by name, number, category, or keywords, Compare up to four gobos simultaneously, Rotate and stack images, Maintain a favorites list, Email gobo selections

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

**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 iGobo free?

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

### Is ETC Library free?

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

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

ETC Library is rated higher. iGobo averages 1.5 out of 5 from 12 ratings, while ETC Library averages 3.8 from 4 ratings.

### Do iGobo or ETC Library have ads?

Neither iGobo nor ETC Library shows ads.

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

iGobo ships an update every 3 months, and ETC Library every 3 months. Most recently, iGobo was updated on October 16, 2026 and ETC Library on October 3, 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.*