Comparison

Nu vs poly player

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

Head to head
About

Nu

This music player allows you to create custom playlists from your device's music library and apply real-time audio effects. Adjust playback speed, pitch, EQ, and reverb to personalize your listening experience. It's ideal for learning music by ear or practicing songs.

Highlights
  • Custom playlist creation
  • Real-time speed and pitch adjustment
  • 10-band equalizer with presets
  • Reverb effect with adjustable decay
  • Center Cancel/Emphasis for stereo
  • Repeat and quick jump playback controls
  • Spectrum display
Read full description

This music player lets you create custom playlists from songs on your device and apply effects in real time. (This app's playlists are registered as song links; song data is not imported into the app.) Let's use this for learning music or voice by ear. Effects List : - Speed ​​change - Pitch change - 10-Band EQ (Equalizer) - Reverb - Center Cancel / Center Emphasis Tap the buttons (Player, Tune, EQ, Reverb) on the toolbar (bottom bar) toggles the effects UI displayed on the control screen. The app retains the effect parameters you set, so your settings remain in effect even when you switch songs. Main features : - Add songs from your music library to a playlist within this app and play songs from the playlist. - Speed ​​change (Change playback speed while maintaining pitch): 50-200% (maximum 12.5-800% (*)) - Pitch change (Change pitch while maintaining playback speed): ±1 octave (maximum ±2 octaves (*)) - 10-Band EQ (Equalizer): Frequency (32, 64, 125, 250, 500, 1k, 2k, 4k, 8k, 16k) Hz) / 22 presets - Reverb: Adjustable decay time (Low freq, High freq) / 13 presets - Center Cancel / Center Emphasis. (for stereo file) - Repeat playback : repeat off, all songs repeat, 1 song repeat. - Quick jump (back, forward) : Select jump interval from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30 sec. - Switch songs (switch one song at a time based on the order of the playlist in the app) - Sort songs (Artist, Title, Recently Added, Formerly Added) - Supports spectrum display. (Calculation Method: Max, Average) - Supports Auto-Lock ON/OFF. - Supports displaying the player on the lock screen. (*) In-App Purchase requires to use the expanded maximum change range (speed: 12.5-800%, pitch: ±2 octaves). If you'd like to try out AUv3 host and export, please use our app "Audio Unit Player". ================================================ [Note] This app can't read songs of the following formats. - Songs from Apple Music, iCloud, iTunes Match - Songs that are protected by digital copyright (DRM) ================================================

About

poly player

This music player allows you to manage and play your local music library, including content transferred from your PC. It offers advanced playback controls like an equalizer, adjustable speed, and lyric display, with options to import music from other apps.

Highlights
  • In-app music library management
  • Transfer music/video from PC
  • Play downloaded Apple Music content
  • Adjustable playback speed
  • Built-in equalizer
  • Add custom lyrics
  • Import content from other apps
Features
Read full description

First, Download and experience this app! This app is the best way to listening to library music poly player is easy to use, and has many useful features. Key Features: - In-App Library transfer music / video from your PC. (This library is not affected by iCloud Music Library) - Play Apple Music contents downloaded on your device. - Multi-Selection by swipe contents - Equalizer in this app - Change play speed from x0.25 to x4.0 - Add lyrics shown only in this app - Import contents from other apps ※ To use import feature, need other apps which can export contents using Open-In function. (ex. Dropbox) You want any other features? Contact me on twitter (refer to support URL) Send message in Japanese or English. Any questions? Contact me in twitter https://twitter.com/InfoPolyplayer

Screenshots

Nu4 screens
poly player3 screens

Verdict

The call

The clearest difference is in-app purchases: poly player at none against Nu's 2. poly player also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 3 months). Nu's advantage is ratings volume (62 vs 9) and review sentiment (50% vs 42%). On price, rating, 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

Both are free to download. Nu sells 2 one-off in-app purchases. poly player asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for Nu against 4.2 for poly player. That said, the two scores are not equally well evidenced: Nu has 62 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 50% of Nu's written reviews are positive against 42% of poly player's.

UpkeepUpdate frequency

Nu ships an update every 3 months, poly player every 5 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
Nu versus poly player: the parameters behind the verdict, then further details
ParameterNupoly player
PriceFreeFree
Rating4.3 (62 ratings) — better4.2 (9 ratings)
Positive reviews50.0% of reviews — better41.5% of reviews
Number of ratings62 — better9
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size5 MB88 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.HIROTERU WATANABE

Customer experience

Nu

All ratings63 ratings
Positive81.0%
Neutral4.8%
Negative14.3%
Written reviews42 reviews
Positive50.0%
Neutral14.3%
Negative35.7%

poly player

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews53 reviews
Positive41.5%
Neutral24.5%
Negative34.0%

Bugs and requests

Nu

Not enough reviews yet to summarise bugs or requests.

poly player

Reported bugs

32 issues
  • Settings reset after each song
  • Playback speed resets to normal after pause
  • Cannot repeat a single song
  • App crashes when adding files
  • Cannot delete songs
Show 27 more
  • Cannot paste photos
  • Frequent freezes
  • Ads appear unexpectedly
  • Song order cannot be changed
  • Playlists disappear after closing app
  • Cannot connect to iPod
  • Swipe gestures are unresponsive
  • Equalizer bar adjustment is rough
  • Cannot import from ImportSource
  • App crashes when trying to play second song onwards
  • Cannot import from file app
  • Equalizer is unusable
  • Section repeat not working
  • Pitch change not available
  • Noisy when screen is off
  • Crashes when increasing playback speed
  • Audio cuts out at high speeds
  • Section repeat is ignored
  • Vocal cancellation causes app to crash
  • Created playlists disappear after closing app
  • Songs in ImportSource cannot be opened
  • Playback stops at 20 minutes
  • Noise/static when screen is off
  • Crashes when increasing playback speed
  • Cannot import from file app
  • Section repeat is ignored
  • Artist tab ad covers settings

Requested features

9 requests
  • Adjustable vocal cancellation (0-100)
  • Vocal cancellation adjustment like effects
  • Adjustable vocal cancellation
  • Reverse playback option
  • Universal app for iPad
Show 4 more
  • Dual simultaneous playback
  • Background playback with other apps
  • Color change option (dark mode)
  • Lyrics displayed full screen

In-app purchases

2 purchases

Nu

One-time2
  • Expand Speed / Pitch range$0.99
  • Always remove ads.$6.99
None

poly player

No in-app purchases

Questions

Is Nu free?
Nu is free to download, with in-app purchases available.
Is poly player free?
poly player is free to download, with no in-app purchases.
Which has better reviews, Nu or poly player?
Nu is rated higher. Nu averages 4.3 out of 5 from 62 ratings, while poly player averages 4.2 from 9 ratings.
Do Nu or poly player have ads?
Nu shows ads; poly player does not.
Which is updated more often, Nu or poly player?
Nu ships an update every 3 months, and poly player every 5 weeks. Most recently, Nu was updated on October 24, 2026 and poly player on October 21, 2026.

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