ETC Library vs Line
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ETC Library
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.
- 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
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ETC Library gives you quick and easy access to ETC’s technical documentation. This virtual binder lets you view, share datasheets, application sheets, brochures and more for all of ETC’s products – anytime, anywhere. Key features • Access to hundreds of documents, including all ETC datasheets • Material organized by product family and category for easy browsing • Share documents easily (Please note: This application intended to deliver basic technical information about ETC’s products and product families. If you are searching for more information than what is provided in this app, please visit www.etcconnect.com.)
Line
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.
- Circle and note missed lines
- Assign notes to actors
- Email notes to cast members
- Digital script annotation
- Rehearsal efficiency tool
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Line-It is built for the modern-day stage manager. In rehearsal, stage management staff can flag any line a performer missed or misread by simply circling it on the script and selecting the note to give the actor. At the end of rehearsal, each cast member can be emailed their personalized line notes with the press of a button.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ETC Library | Line |
|---|---|---|
| Price | Free — better | $24.99 |
| Rating | 3.8 (4 ratings) | 4.3 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 3 months — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPad, Mac |
| Requires iOS | 17 | 16.6 — better |
| Further details — not scored | ||
| Size | 68 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Electronic Theatre Controls, Inc. | UrbanByte LLC |
Customer experience
ETC Library
Line
In-app purchases
ETC Library
No in-app purchases
Line
No in-app purchases
