Comparison

Audio Unit Player vs Music Practice Tool

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

Head to head
About

Audio Unit Player

This music player offers real-time audio processing, including time stretching, pitch shifting, and a 31-band equalizer. It supports AUv3 effects and allows for A-B loop playback, making it ideal for practice, transcription, and performance adjustments.

Highlights
  • Real-time time stretch (50-200%)
  • Real-time pitch shift (-12 to +12 semitones)
  • 31-band equalizer with presets
  • AUv3 effects support
  • A-B loop playback
  • Background playback
  • Audio file export
Read full description

This app is a music player that can process the following effects in real time. - Time stretch (0.5-2.0 double speed) - Pitch shift (-1 ~ +1 octave) - 31 band equalizer - Reverb - AUv3 (Audio Unit v3) host [Use cases] - Karaoke's training. (Can be changed speed units of 10%, pitch shift in semitones easily) - Can playback at reduced tempo to copy phrase for guitar or bass, the keyboard instrument. - Can playback by changing the pitch to play by changing the key in the band performance (Developer himself has experience). [Function] - Perform time stretch (50 - 200%) / pitch shift (-12 - +12) in real time. - 31 bands EQ (Hz: 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k). - EQ preset (Abundant Built-in Presets / Custom Presets). - Reverb: Adjustable decay time (Low freq, High freq) / 13 presets - Reverb preset (Built-in Presets / Custom Presets) - Can be used as an AUv3 host. - A-B loop playback. - Center Cancel / Center Emphasis. - Lch, Rch each mute. - Quick fast forward, rewind (specify the number of seconds). - Check and set current position graphically in wave view. - Supports Auto-Lock ON/OFF. - Supports background playback. - Supports export (file writing) function (Each effect (speed/pitch/EQ) value set for each song is also reflected. The range specified in the loop section is output.) In addition to loading "music" data included in the standard music app, it also supports the function to import audio files from other apps ("Voice Memos" etc.). [How to import from "Voice Memos"] 1. Start the app "Voice Memos" and tap the mark "..." of the file to be imported from the list. 2. Tap "Share" on the sheet displayed from the bottom. 3. Tap "More" found by scrolling the displayed list of sharing destination apps to the right. 4. Select "AU Player" if available. The file is copied to this app. ================================================ [Note 1] This application will not be able to read songs of the following formats. - Songs from Apple Music, iCloud, iTunes Match - Songs that are protected by digital copyright (DRM) [Note 2] Depending on the state of your device, your custom AUv3 effects may not appear in the list. As a solution, you can solve the problem by starting "GarageBand" once and restarting this app. ================================================

About

Music Practice Tool

This app helps wind and string instrument players improve their practice sessions. It combines a metronome, tuner, and recorder on a single screen for efficient use. Objectively review your performance through recordings to identify areas for improvement.

Highlights
  • Integrated metronome, tuner, and recorder
  • Single-screen operation for efficiency
  • Record and playback for performance review
  • Objective self-assessment of playing
  • Customizable color themes
  • Automatic screen orientation flip
Read full description

A new and easy way to practice your musical instrument! (for wind and string instruments player) A metronome, tuner and recorder all set out in the same screen to fit right into your practice session. With the same operations all in one screen, you can quickly go from recording to playback to checking and back to recording. By objectively reviewing your performance and then trying it again, you'll really make progress! ○○○○○ Product Features ○○○○○ A practice app that boosts the efficiency of your musical instrument practice sessions. Most people learning to play a musical instrument practice alone. When you practice with a teacher or with your friends, they can give you advice about your playing and you can identify the problems you need to work on. But when you practice alone, it's much more difficult to see your playing objectively. <That's when "Music Practice" is really invaluable. > You can control the metronome, tuner and recorder all from the same screen, which means that as well as checking your tempo and tuning as you play, you can also directly record your playing. By listening to your recording as soon as you finish playing, you can get an objective impression of your performance. <Straightforward design and layout > A key feature of the app is that the screen is laid out so that it makes practicing more efficient. The features you use in real time are shown larger so you don't hit the wrong button by mistake. And when you tilt your device, the layout automatically flips between horizontal and vertical. So you can set it on your music stand or put it on a table, whatever works best for you. <Customize your design > Because you'll be using it every day, you'll want to get the design just right. There are lots of color variations. Play around until you get the colors just right for you, whether it's your lucky color or just the color that suits your mood today. 【Operating requirements】 iPhone 5, iPhone5s, iPhone5c, iPhone 6, iPhone6 Plus iPod touch (5th generation) ※iOS 7 or later required.

Screenshots

Audio Unit Player3 screens
Music Practice Tool4 screens

Verdict

The call

The clearest difference is price: Audio Unit Player at Free against Music Practice Tool's $0.99. Audio Unit Player also leads on update cadence (every 2 weeks vs every 13 months) and review sentiment (67% vs 44%). Music Practice Tool's advantage is in-app purchases (none vs 1) and ads (none vs shown). On monetization model 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

Audio Unit Player is free to download; Music Practice Tool costs $0.99 up front. Audio Unit Player sells 1 one-off in-app purchase. Music Practice Tool asks for nothing beyond the download.

UpkeepUpdate frequency

Audio Unit Player ships an update every 2 weeks, Music Practice Tool every 13 months. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

Scorecard6 real differences · 4 level
Audio Unit Player versus Music Practice Tool: the parameters behind the verdict, then further details
ParameterAudio Unit PlayerMusic Practice Tool
PriceFree — better$0.99
Rating3.9 (30 ratings) — better—
Positive reviews66.7% of reviews — better44.4% of reviews
Number of ratings30 — better—
Update frequencyEvery 2 weeks — betterEvery 13 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.010.0 — better
Further details — not scored
Size5 MB18 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.CASIO COMPUTER CO., LTD.

Customer experience

Audio Unit Player

All ratings30 ratings
Positive70.0%
Neutral6.7%
Negative23.3%
Written reviews48 reviews
Positive66.7%
Neutral4.2%
Negative29.2%

Music Practice Tool

Written reviews9 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

In-app purchases

1 purchases

Audio Unit Player

One-time1
  • Always remove banner ads.$3.99
None

Music Practice Tool

No in-app purchases

Questions

Is Audio Unit Player free?
Audio Unit Player is free to download, with in-app purchases available.
Is Music Practice Tool free?
Music Practice Tool costs $0.99, with no in-app purchases.
Do Audio Unit Player or Music Practice Tool have ads?
Audio Unit Player shows ads; Music Practice Tool does not.
Which is updated more often, Audio Unit Player or Music Practice Tool?
Audio Unit Player ships an update every 2 weeks, and Music Practice Tool every 13 months. Most recently, Audio Unit Player was updated on September 25, 2026 and Music Practice Tool on September 17, 2026.

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