Comparison

PSOFT Audio Player vs UK

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

Head to head
About

PSOFT Audio Player

This music player allows independent adjustment of key, playback speed, and sound extraction with exceptional audio quality. It's ideal for musicians, language learners, and anyone needing to analyze or manipulate audio content.

Highlights
  • Change playback speed
  • Adjust musical key
  • Modify voice characteristics
  • Remove or extract specific sounds
  • Analyze music and display chords
  • Export modified audio (add-on)
Features
Read full description

“Freely manipulate sound with incredibly natural results.” Make the comparison with your own ears. This music player makes it easy to independently change your music's key and playing speed and remove or extract specified sounds, while preserving an overwhelming audio quality that cannot be matched. Recommended for: ・ Musical instrument practice. ・ Making karaoke tracks. ・ Musical transcription. ・ Creating audio tracks for dance practice. ・ Learning foreign languages by listening to podcasts. ・ Efficiently gathering information from podcasts. ・ Audio-typing comfortably. With usual audio equipment, large changes to key and playing speed typically result in a heavy degradation of the audio quality. However, by using our company's “PhaseGear” technology, this app succeeds in reducing audio degradation to its utmost minimum. The result is surprisingly natural-sounding audio. ============== [ Main Features ] ============== ▼ Change playing speed [Time stretch] Change the playing speed without affecting the key (0.00x – 4.00x). ▼ Change key [Pitch shift] Change the key without affecting the playing speed (±24.00 semitones). ▼ Change voice [Formant] Apply changes to voices (±24.00). Includes the [Correction] function which restrains voice alterations caused by changing the key. ▼ Remove / extract sounds [Audio masking] Visualize the audio and remove / pick out sound from a specified band. Obtain exceptional audio quality thanks to a new technology preventing mixing in rhythm sound. * Depending on the musical structure, it might not be possible to obtain the desired results. ▼ Analyze audio and display chords [Musical scale analysis] Analyzes music as it plays and displays the musical scale on a keyboard. Also allows on-screen display of inferred chords. ▼ Output the modified audio [Export (*Add-on)] Output the audio data file with modified key, sound masking, etc. The exported file can also be used with a PC or other device. * This function must be purchased as an add-on. ====================================== ■ Specifications - Play menu - Play / Pause - Skip 15s / Back 15s (*Only available on 4 inch displays) - Fast forward / Rewind - Next song / Previous song - Play position adjustment slider - Play mode - Play all songs - Repeat all songs - Play 1 song - Repeat 1 song - Shuffled play - Shuffled repeat - Share song information - Send the current song info to other apps, share functionality. - Select songs by - Playlist - Song - Artist - Album - Composer - Genre - Compilation - Podcast - Audiobook - Document - Supports background play * Note Contents on iCloud and protected contents not supported. ■ About PhaseGear PhaseGear is our company's audio signal processing engine based on patented technology. It implements high quality time stretch and pitch shift processing as well as superior sound masking. Please refer to the link below for more details about this technology. (*In Japanese) http://www.psoft.co.jp/jp/corporate/technology/phasegear.html * Patent registered in Japan, USA and South Korea.

About

UK

Create music on your mobile device with a powerful digital audio workstation. Record, edit MIDI and audio, and collaborate with other DAWs. Supports AUv3 plugins and SoundFonts for versatile sound creation.

Highlights
  • Collaborate with other DAWs via dawproject export
  • Record, edit, and save audio and MIDI data
  • Utilize Audio Unit (AUv3) plugins and SoundFonts
  • Create playlists for consecutive song playback
  • Input performance data while viewing sheet music
  • Record vocals with karaoke tracks
Features
Read full description

Recommended for: ・Those who want to practice instruments or transcribe by ear ・Those who want to quickly record phrases and ideas on the go ・Those who want to easily create songs in a mobile environment ・Those who want to transfer songs created on an iPhone or iPad to a computer DAW software ・Those who want to input performance infomation while looking at sheet music ・Those who want to record their own performance ・Those who want to easily edit MIDI data and sound data ・Those who want to automatically play electronic instruments (synthesizers, digital pianos, rhythm machines, etc.) or record their performance ・Those who want to use Audio Unit (AUv3) plug-in sound sources and audio effectors, midi effectors ・Those who want to learn MIDI ・Those who want to view and analyze MIDI data output from electronic instruments ・Those who want to try voice percussion ・Those who want to play Standard MIDI Files (SMF) ・Those who have used DAW software in the past but gave up ・Those who want to create a medley of their favorite songs from a music CD ・Those who want to easily record vocals along with karaoke songs from music CDs ・Those who want to play music and sound effects at their own timing using the screen touch or an external MIDI controller ■Key Features [Collaborate Other DAW Software] ・Supports the export function for dawproject files. Quickly turn ideas into songs in a mobile environment, then use DAW project file import functionality (e.g., Bitwig Studio, Cubase ,Cubasis, Studio One) to create and polish your songs. *For important information on handling dawproject files, please refer to the website [https://uk-868home.my.canva.site/]. ・Supports playback, editing, and saving of SMF (Standard MIDI File), which can be linked with a DAW on a PC. ・You can export the performance of audio phrases registered in a song or MIDI phrases output to a SoundFont source to a Wave file. [For Performance] ・Play, edit, and save audio that combines multiple Wave files. (You can also import songs stored in the Music library of your iPhone or iPad.)*Songs downloaded from paid sites are not included. ・It supports audio capture using the 16 pads on the iPhone or iPad's built-in microphone or audio interface, pad touch playback, loop playback, and real-time recording of performances using pad and slider operations. ・By creating a PlayList, you can play multiple songs consecutively. Songs from this app, SMF, and Wave files can be registered in a PlayList. [Use Audio Unit (AUv3) plugin, Sound Font] ・You can create sounds by assigning commercially available AudioUnit V3 compatible instruments (sound sources such as synthesizers) and effects available for iPhone and iPad to the Audio Mixer. In addition, it can also handle sound sources that use replaceable Sound Font (sf2) files, so you can play back input MIDI data even without an external sound source. ・Audio phrases can be played back while controlling the volume, effects, etc. using the Audio Mixer. [MIDI & Audio Editing] ・You can freely paste phrases (MIDI, Audio) anywhere on the 32 multi-tracks to create music. Supports inputting MIDI along with the wave, and recording voices and instrument performances along with MIDI. ・ MIDI phrases support an editor that allows event input and editing using the Grid screen, Event List screen, Rhythm screen, and Chord screen. The MIDI Control screen also supports event input during loop playback, and the import and editing of MIDI events by operating an external MIDI device. [Study and analysis of electronic instrument control and MIDI] ・Supports MIDI Router to control MIDI input and output. ・ It also supports a MIDI monitor function that allows you to visually check the contents of MIDI input messages. ・It supports a viewer/controller that allows you to visually check MIDI playback messages and output MIDI events by swiping. ・Equipped with message recording, editing, and playback functions newly supported by the MIDI 2.0 standard.

Screenshots

PSOFT Audio Player4 screens
UK4 screens

Verdict

The call

The clearest difference is rating: UK at 5.0 against PSOFT Audio Player's 4.5. UK also leads on in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 3 months). PSOFT Audio Player's advantage is price ($6.99 vs $11.99) and iOS requirement (15.6 vs 17.6). On ratings volume, ads, 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

PSOFT Audio Player costs $6.99 and UK $11.99 up front. PSOFT Audio Player sells 1 one-off in-app purchase. UK asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

UK holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

UpkeepUpdate frequency

PSOFT Audio Player ships an update every 3 months, UK every 6 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
PSOFT Audio Player versus UK: the parameters behind the verdict, then further details
ParameterPSOFT Audio PlayerUK
Price$6.99 — better$11.99
Rating4.5 (4 ratings)5.0 (3 ratings) — better
Positive reviews71.4% of reviews—
Number of ratings4 — better3
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size5 MB87 MB
Age rating4+4+
DeveloperPSOFTMASAHARU TANAKA

Customer experience

PSOFT Audio Player

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews28 reviews
Positive71.4%
Neutral7.1%
Negative21.4%

UK

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

PSOFT Audio Player

One-time1
  • Export Add-on$24.99
None

UK

No in-app purchases

Questions

Is PSOFT Audio Player free?
PSOFT Audio Player costs $6.99, and also offers in-app purchases.
Is UK free?
UK costs $11.99, with no in-app purchases.
Which has better reviews, PSOFT Audio Player or UK?
UK is rated higher. PSOFT Audio Player averages 4.5 out of 5 from 4 ratings, while UK averages 5.0 from 3 ratings.
Do PSOFT Audio Player or UK have ads?
Neither PSOFT Audio Player nor UK shows ads.
Which is updated more often, PSOFT Audio Player or UK?
PSOFT Audio Player ships an update every 3 months, and UK every 6 weeks. Most recently, PSOFT Audio Player was updated on October 29, 2026 and UK on October 24, 2026.

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