Comparison

ETC Library vs RMS Mix

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.)

About

RMS Mix

This app allows users to access and manage live theatre music resources on their mobile devices. It provides high-quality multitrack audio playback, intuitive mixing controls, and convenient navigation for musical productions.

Highlights
  • High-quality multitrack audio (up to 16 channels)
  • Intuitive mix controls
  • Convenient part organization
  • Arbitrary vamp control
  • Bar-by-bar music navigation
  • Customizable reverb engine
  • Unlimited show file downloads
Features
Read full description

This app is to be used in conjunction with live theatre resources offered through Realtime Music Solutions - including: * Sinfonia (OrchExtra, InstrumentalEase) * RMS Coach (AccompanEase) * RMS Mix With this app, you can take content developed and edited with any of the above on the go, on your iPhone or iPad. Features include: * High quality multitrack audio, up to 16 channels, 8 stereo tracks. * Intuitive mix controls. * Convenient part organization and separation, allows you to focus on what you need. * Arbitrary vamp control. * Bar by bar music navigation. * Customizable reverb engine. * Unlimited downloads of all show files associated with your production. If you've been using these resources for years, you now have an amazing and powerful new extension to the capabilities! If you're new to these technologies, you've got a new reason to give it a try! Check out why so many theaters and schools around the world won't do a show without them!

Screenshots

ETC Library4 screens
RMS Mix4 screens

Verdict

The call

The clearest difference is review sentiment: RMS Mix at 55% against ETC Library's 0%. RMS Mix also leads on rating (4.5 vs 3.8) and update cadence (fortnightly vs every 3 months). On price, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RMS Mix holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 0% of ETC Library's written reviews are positive against 55% of RMS Mix's.

UpkeepUpdate frequency

ETC Library ships an update every 3 months, RMS Mix fortnightly. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

Scorecard4 real differences · 6 level
ETC Library versus RMS Mix: the parameters behind the verdict, then further details
ParameterETC LibraryRMS Mix
PriceFreeFree
Rating3.8 (4 ratings)4.5 (8 ratings) — better
Positive reviews0.0% of reviews54.5% of reviews — better
Number of ratings48 — better
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS1713.0 — better
Further details — not scored
Size71 MB71 MB
Age rating4+4+
DeveloperElectronic Theatre Controls, Inc.Realtime Music Solutions, LLC

Customer experience

ETC Library

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

RMS Mix

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive54.5%
Neutral0.0%
Negative45.5%

In-app purchases

None

ETC Library

No in-app purchases

None

RMS Mix

No in-app purchases

Questions

Is ETC Library free?
ETC Library is free to download, with no in-app purchases.
Is RMS Mix free?
RMS Mix is free to download, with no in-app purchases.
Which has better reviews, ETC Library or RMS Mix?
RMS Mix is rated higher. ETC Library averages 3.8 out of 5 from 4 ratings, while RMS Mix averages 4.5 from 8 ratings.
Do ETC Library or RMS Mix have ads?
Neither ETC Library nor RMS Mix shows ads.
Which is updated more often, ETC Library or RMS Mix?
ETC Library ships an update every 3 months, and RMS Mix fortnightly. Most recently, ETC Library was updated on November 6, 2026 and RMS Mix on November 1, 2026.

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