Nu vs Previewra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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) ================================================
Previewra
Discover new music by quickly previewing up to 20 songs from your favorite artists. This app allows continuous 30-second playback of tracks, with direct links to Apple Music and the iTunes Store for full purchases. It's ideal for sampling music before committing to a full listen.
- 30-second continuous song previews
- Artist search functionality
- Playback controls (play/pause/skip)
- Recent artist search history
- Direct links to Apple Music/iTunes Store
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Previewra は、アーティストの楽曲を 30秒プレビューで連続再生できる、音楽試聴アプリです。 気になるアーティストを検索して、 代表的な楽曲をテンポよくチェックできます。 主な機能 アーティスト検索 最大20曲の30秒プレビューを連続再生 再生/一時停止/曲送り操作 最近検索したアーティストの表示 Apple Music / iTunes Store への直接リンク ※ 本アプリは音楽のフル再生は行いません。 ※ プレビュー音源は Apple が提供する公式データを使用しています。 「まずは聴いてみたい」 そんな時に、Previewra を使ってみてください。 English Previewra lets you listen to music using 30-second previews played continuously. Search for an artist and quickly preview multiple tracks to get a feel for their music. Features Artist search Continuous playback of up to 20 music previews Play / pause / skip controls Recent artist search history Direct links to Apple Music and the iTunes Store This app does not provide full-length music playback. Preview audio is provided by Apple. Perfect for discovering music quickly and easily.
Screenshots
Verdict
The clearest difference is rating: Previewra at 5.0 against Nu's 4.3. Previewra also leads on in-app purchases (none vs 2) and ads (none vs shown). Nu's advantage is ratings volume (63 vs 1) and iOS requirement (17.0 vs 26.2). On price 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
Both are free to download. Nu sells 2 one-off in-app purchases. Previewra asks for nothing beyond the download.
Previewra holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Nu has 63 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Nu | Previewra |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (63 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 63 — better | 1 |
| Update frequency | Every 3 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Loop-Sessions.LLC. | TAKASHI NOSE |
Customer experience
Nu
Previewra
In-app purchases
Nu
- Expand Speed / Pitch range$0.99
- Always remove ads.$6.99
Previewra
No in-app purchases









