Comparison

Transposer Pro vs AUBE 2 Audio Unit Box Explorer

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

Head to head
About

Transposer Pro

Features
Read full description

This app is designed to show how a note written for a given instrument (e.g. a Clarinet in Bb) would be written on another instrument (e.g. a Horn in F). - Intended for music students, conductors, composers and anybody who wants to get quicker at reading scores - Choose from over 100 instruments to transpose - many with configurable keys and clefs - Use the slider to interactively see the result of the transposition - Includes info on instrument ranges and transposition properties - Supports 4 clefs (automatically selected based on instrument conventions and register) - Includes guidance on the fundamentals of reading transposing instruments - Supports dark and light themes

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

Screenshots

Transposer Pro4 screens
AUBE 2 Audio Unit Box Explorer4 screens

Verdict

The call

The clearest difference is price: Transposer Pro at $0.99 against AUBE 2 Audio Unit Box Explorer's $19.99. Transposer Pro also leads on iOS requirement (16.3 vs 18.0). AUBE 2 Audio Unit Box Explorer's advantage is update cadence (every 2 months vs every 11 months). On 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

CostPrice · In-app purchases · Ads · Monetization

Transposer Pro costs $0.99 and AUBE 2 Audio Unit Box Explorer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Transposer Pro ships an update every 11 months, AUBE 2 Audio Unit Box Explorer every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Transposer Pro versus AUBE 2 Audio Unit Box Explorer: the parameters behind the verdict, then further details
ParameterTransposer ProAUBE 2 Audio Unit Box Explorer
Price$0.99 — better$19.99
Rating—4.7 (24 ratings) — better
Positive reviews—93.8% of reviews
Number of ratings—24 — better
Update frequencyEvery 11 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.3 — better18.0
Further details — not scored
Size3 MB22 MB
Age rating4+4+
DeveloperMatt WelchFrederic Corvest

In-app purchases

None

Transposer Pro

No in-app purchases

None

AUBE 2 Audio Unit Box Explorer

No in-app purchases

Questions

Is Transposer Pro free?
Transposer Pro costs $0.99, with no in-app purchases.
Is AUBE 2 Audio Unit Box Explorer free?
AUBE 2 Audio Unit Box Explorer costs $19.99, with no in-app purchases.
Do Transposer Pro or AUBE 2 Audio Unit Box Explorer have ads?
Neither Transposer Pro nor AUBE 2 Audio Unit Box Explorer shows ads.
Which is updated more often, Transposer Pro or AUBE 2 Audio Unit Box Explorer?
Transposer Pro ships an update every 11 months, and AUBE 2 Audio Unit Box Explorer every 2 months. Most recently, Transposer Pro was updated on October 25, 2026 and AUBE 2 Audio Unit Box Explorer on October 24, 2026.

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