# ETC Library vs Line

The clearest difference is review sentiment: Line at 100% against ETC Library's 0%. Line also leads on rating (4.3 vs 3.8). ETC Library's advantage is price (Free vs $24.99) and update cadence (every 3 months vs every 14 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

ETC Library is free to download; Line costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Line holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 0% of ETC Library's written reviews are positive against 100% of Line's.

ETC Library ships an update every 3 months, Line every 14 months. The most recent releases landed on August 15, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | ETC Library | Line |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/etc-library/id733300518/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/line-it/id1090772813/reviews)** |
| Number of ratings | 4 | **6** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | **Free** | Paid |
| Size | 68 MB | 15 MB |
| Requires iOS | 17 | **16.6** |
| Devices | iPhone, iPad | iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Electronic Theatre Controls, Inc.](https://appshunter.io/developer/318210459) | [UrbanByte LLC](https://appshunter.io/developer/947652866) |

## What reviewers say

### 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


### Line

[App page](https://appshunter.io/ios/app/line-it/id1090772813)

This app helps stage managers quickly identify and note missed or incorrect lines during rehearsals. Performers receive their personalized notes via email at the end of each day.

**Highlights:** Circle and note missed lines, Assign notes to actors, Email notes to cast members, Digital script annotation, Rehearsal efficiency tool

**In-app purchases:** none


## Frequently asked questions

### Is ETC Library free?

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

### Is Line free?

Line costs $24.99, with no in-app purchases.

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

Line is rated higher. ETC Library averages 3.8 out of 5 from 4 ratings, while Line averages 4.3 from 6 ratings.

### Do ETC Library or Line have ads?

Neither ETC Library nor Line shows ads.

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

ETC Library ships an update every 3 months, and Line every 14 months. Most recently, ETC Library was updated on August 15, 2026 and Line on June 11, 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.*