Comparison

AUBE 2 Audio Unit Box Explorer vs LevLr

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

Head to head
About

AUBE 2 Audio Unit Box Explorer

Organize, explore, and share your AUv3 plugin collection with this comprehensive tool. Discover new plugins, track favorites, and manage your library efficiently across devices. Features include advanced search, filtering, and community sharing.

Highlights
  • AUv3 plugin organization by group, category, and features
  • Search and filter by device compatibility and keywords
  • Track favorites and create wishlists
  • Community sharing of plugin collections
  • Mac and iOS versions with universal purchase
  • Keyboard extension for quick plugin searches
Features
Read full description

AUBE keeps your AUv3 collection organized and ready to explore. Browse a constantly updated catalog, discover and launch your plugins, and quickly find what you need, all in one place! Get a clear overview of your AUv3 plugins, whether they’re installed on your device or offloaded. Browse the AUv3 plugin catalog and discover plugins you're interested in. With a simple, intuitive interface, AUBE organizes your AUv3 plugins by group, category, and features, making it easy to find the right plugin for your creative needs. You can search quickly using keywords, filter by device compatibility, or browse related plugins within the same group. Instantly launch, preview, and test your installed AUv3 plugins. Easily track your favorites, wishlist, and custom tags across devices, share your collection with friends, explore new plugins by importing their selections, and create custom badges to showcase your top picks on social media. It also supports iPad multitasking, allowing you to work side by side with other apps. It includes a convenient keyboard extension for fast plugin searches directly within your AUv3 host apps. With AUBE, managing and discovering AUv3 plugins has never been easier. • Provides full catalog browsing with over 1.8k AUv3 plugins • Database updates are included with the one-time purchase • AUv3 host for instantly exploring and testing your installed plugins* • Preview effects, instruments, and MIDI plugins • Export parameter trees and run plugin validation tests • Widget Extension: Get your AUv3 plugin stats, always in view • Keyboard Extension: Search and locate your AUv3 plugins inside hosts that have a text search field** • "Wishlist" to track plugins you want to acquire • Community Sharing: Share your collection with friends or browse others' collections • Precise filtering to view only plugins compatible with your device • Browse related plugins within the same group or category • Quick launch actions and split-screen support for working with multiple apps, including the App Store • Export installed AUv3 plugins to CSV • Universal Purchase: Includes the Mac version (**keyboard extension and *AUv3 hosting are currently iOS only) Check the documentation at fredantoncorvest.com/AudioUnitBoxExplorer.html for more information

About

LevLr

This audio effect plugin offers simple compression and limiting for music production. It features two modes and two intuitive controls, making it easy to achieve desired dynamics without complex settings. Presets are included for quick adjustments.

Highlights
  • Compressor and Limiter modes
  • Two intuitive controls (In/Out)
  • Simple presets
  • AUv3 compatible
  • Standalone operation
Read full description

LevLr Compressor / limiter Plugin (AUv3) LevLr is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic or GarageBand. Overview The LevLr "leveller" is a super simple dynamics processor with just two modes and two controls. If you find tinkering with compression ratios, makeup gain and attack / decay times, confusing or time-consuming, you might like to give LevLr a try, especially as it's free! Parameters Active - Toggles the effect On or Off. Mode - Changes between Comp (compressor) and Limit (limiter) mode. Typically you would use Comp on an individual track, and Limit on a master output. In - Determines how hard you drive the compression "circuit". As you increase the gain, the compression effect will become more obvious, with an overall increase in perceived volume and "weight". Out - Allows you to reduce the output in cases where you have the desired amount of compression, but the track is now too dominant in your mix. You generally don't need to adjust this unless your In setting is more than about 6dB. With so few controls, it's pretty easy to dial-in LevLr to taste, but it also has three very simple presets to get you going: Default - a general-purpose Comp setting that can help a track sit in the mix a bit better. Track Compressor - this is heavier / more obvious compression, with a little gain compensation. Master Limiter - this can work well on a master bus and makes everything seem LOUDER! That's pretty much all there is to it, but for the technically minded... The In value is basically the compression threshold, so for example 6dB means compression will kick-in somewhere around the -6dB level. The compression ratios used are 4:1 and 12:1 for Comp and Limit mode respectively. Automatic gain compensation is applied internally depending on the threshold and ratio. The attack time is extremely fast (close to 0ms) meaning that LevLr should handle just about anything you can throw at it without exceeding 0dB at its output. Please do take a look at my other AudioUnits on the App Store if you can spare the time. Supporting paid apps allows me to release free ones as a little thankyou from time to time. For more info and support please visit: www.waverley-instruments.com/robjackson

Screenshots

AUBE 2 Audio Unit Box Explorer4 screens
LevLr2 screens

Verdict

The call

The clearest difference is price: LevLr at Free against AUBE 2 Audio Unit Box Explorer's $19.99. LevLr also leads on update cadence (daily vs every 2 months) and rating (5.0 vs 4.6). AUBE 2 Audio Unit Box Explorer's advantage is ratings volume (22 vs 5). On 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

LevLr is free to download; AUBE 2 Audio Unit Box Explorer costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

LevLr holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 22 and 5 respectively.

UpkeepUpdate frequency

AUBE 2 Audio Unit Box Explorer ships an update every 2 months, LevLr daily. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

Scorecard7 real differences · 3 level
AUBE 2 Audio Unit Box Explorer versus LevLr: the parameters behind the verdict, then further details
ParameterAUBE 2 Audio Unit Box ExplorerLevLr
Price$19.99Free — better
Rating4.6 (22 ratings)5.0 (5 ratings) — better
Positive reviews93.8% of reviews—
Number of ratings22 — better5
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.012.0 — better
Further details — not scored
Size22 MB12 MB
Age rating4+4+
DeveloperFrederic CorvestRob Jackson

Customer experience

AUBE 2 Audio Unit Box Explorer

All ratings22 ratings
Positive90.9%
Neutral4.5%
Negative4.5%
Written reviews32 reviews
Positive93.8%
Neutral0.0%
Negative6.3%

LevLr

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AUBE 2 Audio Unit Box Explorer

No in-app purchases

None

LevLr

No in-app purchases

Questions

Is AUBE 2 Audio Unit Box Explorer free?
AUBE 2 Audio Unit Box Explorer costs $19.99, with no in-app purchases.
Is LevLr free?
LevLr is free to download, with no in-app purchases.
Which has better reviews, AUBE 2 Audio Unit Box Explorer or LevLr?
LevLr is rated higher. AUBE 2 Audio Unit Box Explorer averages 4.6 out of 5 from 22 ratings, while LevLr averages 5.0 from 5 ratings.
Do AUBE 2 Audio Unit Box Explorer or LevLr have ads?
Neither AUBE 2 Audio Unit Box Explorer nor LevLr shows ads.
Which is updated more often, AUBE 2 Audio Unit Box Explorer or LevLr?
AUBE 2 Audio Unit Box Explorer ships an update every 2 months, and LevLr daily. Most recently, AUBE 2 Audio Unit Box Explorer was updated on October 14, 2026 and LevLr on October 10, 2026.

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