Comparison

AUBE 2 Audio Unit Box Explorer vs PO

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

PO

Design and edit drum sounds, kits, and patterns for Teenage Engineering's PO-32 Tonic. Transfer your creations to the device via audio. Back up and edit existing sounds, and import/export patches from Microtonic.

Highlights
  • Shape 16 sounds with 21 synth parameters
  • Program 16-step patterns with accents
  • Send kits, sounds, or patterns via audio
  • Back up and decode PO-32 data dumps
  • Import/export Microtonic patches
  • Local library with tags and favorites
Features
Read full description

PO-PatchStudio designs drum sounds, kits and patterns for Teenage Engineering's PO-32 Tonic, then sends them to your Pocket Operator over sound. Free, with no ads and no account. The PO-32 has no USB data connection. It loads new sounds the way an old modem does, by listening through its microphone. So this app does the fiddly part on a proper screen: build a kit, hold your phone next to the PO-32 and press play. WHAT YOU CAN DO - Shape all 16 sounds with the full set of 21 synth parameters, plus both ends of the morph - Program 16-step patterns on the pads, with accents, and hear them before you send - Send a whole kit, a single sound or a pattern to the PO-32 over audio - Back up your PO-32: record its data dump through the microphone and the app decodes it into a kit you can edit - Import Microtonic .mtdrum and .mtpreset patches, including files from older versions of Microtonic, and export your sounds back out - Keep kits, sounds and patterns in a local library with tags and favourites WORKS WITH - PO-32 Tonic - Also sends drum sounds to the PO-35 Speak's built-in Tonic channel HOW TRANSFER WORKS Put the PO-32 in receive mode (press acc + sound), turn your phone's volume up and play the transfer into the PO-32's mic. To back up, start recording in the app, then hold write and press sound on the PO-32. Previews come from an open-source recreation of the PO-32's synth, so they sound close to the hardware but not identical. Once a sound is on the PO-32, it plays through the device's own engine. A NOTE FROM ME I'm a solo developer and a PO-32 owner. PO-PatchStudio stands on the open-source libpo32 library by Eric Lewis and years of reverse-engineering by the Pocket Operator community, which is why it's free. If something is missing or broken, tell me. Not affiliated with or endorsed by Teenage Engineering AB or NuEdge Development AB. Pocket Operator, PO-32 and Tonic are trademarks of Teenage Engineering AB. Microtonic is a trademark of NuEdge Development AB.

Screenshots

AUBE 2 Audio Unit Box Explorer4 screens
PO4 screens

Verdict

The call

The clearest difference is price: PO at Free against AUBE 2 Audio Unit Box Explorer's $19.99. PO also leads on update cadence (every 2 days vs every 2 months) and rating (5.0 vs 4.6). AUBE 2 Audio Unit Box Explorer's advantage is ratings volume (22 vs 1). 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

PO 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

PO holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: AUBE 2 Audio Unit Box Explorer has 22 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

AUBE 2 Audio Unit Box Explorer ships an update every 2 months, PO every 2 days. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
AUBE 2 Audio Unit Box Explorer versus PO: the parameters behind the verdict, then further details
ParameterAUBE 2 Audio Unit Box ExplorerPO
Price$19.99Free — better
Rating4.6 (22 ratings)5.0 (1 ratings) — better
Positive reviews93.8% of reviews—
Number of ratings22 — better1
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size22 MB12 MB
Age rating4+4+
DeveloperFrederic CorvestPhoton Consulting Limited

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%

PO

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AUBE 2 Audio Unit Box Explorer

No in-app purchases

None

PO

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 PO free?
PO is free to download, with no in-app purchases.
Which has better reviews, AUBE 2 Audio Unit Box Explorer or PO?
PO is rated higher. AUBE 2 Audio Unit Box Explorer averages 4.6 out of 5 from 22 ratings, while PO averages 5.0 from 1 ratings.
Do AUBE 2 Audio Unit Box Explorer or PO have ads?
Neither AUBE 2 Audio Unit Box Explorer nor PO shows ads.
Which is updated more often, AUBE 2 Audio Unit Box Explorer or PO?
AUBE 2 Audio Unit Box Explorer ships an update every 2 months, and PO every 2 days. Most recently, AUBE 2 Audio Unit Box Explorer was updated on October 5, 2026 and PO on October 11, 2026.

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