Comparison

Pitch Shift (Key Change) vs StringView

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

Head to head
About

Pitch Shift (Key Change)

This music player allows real-time pitch shifting and a 31-band equalizer. It supports AUv3 effects, loop playback, and exporting processed audio. Import audio files from other apps or your music library.

Highlights
  • Real-time pitch shifting
  • 31-band equalizer
  • AUv3 effects support
  • A-B loop playback
  • Center Cancel/Emphasis
  • Audio file export
  • Background playback
Read full description

[ Important Notice ] With this version (7.0.0), we are ending regular updates for this app. You can continue using this app, but future development and updates will continue in 'Audio Unit Player', which includes this app's functionality. 'Audio Unit Player' is a free app that supports both speed and pitch adjustment and includes a 31-band equalizer with no band restrictions. Data Transfer: File information registered in this app is not transferred automatically to 'Audio Unit Player'. Use the Files app to manually copy any files you need."; ================================================ This app is a music player that can process the following effects in real time. - Pitch shift (-1 ~ +1 octave) - 31 band equalizer (required In-App Purchase) - Reverb - AUv3 (Audio Unit v3) host If you play a musical instrument or sing a song, this app should be supported by you higher / lower the pitch. [Function] - Perform pitch shift in real time (-12 - +12). - 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). (Initiality, only 3 bands are available. It's possible to use 31 bands by In-App Purchase.) - EQ preset (Abundant Built-in Presets / Custom Presets) (required In-App Purchase). - 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 (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 "Pitch Shift" 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

StringView

Features
Read full description

StringView is a visual fingerboard trainer for bowed and fretted string players. Choose your instrument, pick a scale, and explore the fingerboard as a clear, colorful map of notes, intervals, and scale degrees. 

Explore 16 scales and modes (more to come) StringView includes a complete set of essential scales and modes: • Major / Ionian • Dorian • Phrygian • Lydian • Mixolydian • Natural Minor / Aeolian • Locrian • Chromatic • Melodic Minor • Harmonic Minor • Pentatonic Major • Pentatonic Minor • Diminished (Whole-Half) • Diminished (Half-Whole) • Whole Tone • Augmented You can choose any root note and decide whether to display alterations as sharps or flats, so the view matches your musical background and preference. Notes, intervals, degrees, and shapes Display note names, intervals, or scale degrees on the fingerboard. Each scale degree has its own distinctive shape, and each note has its own consistent color to make patterns easier to recognize. Shapes and labels can be toggled independently, so you see exactly what you need. Harmonics and fret markers A dedicated harmonics mode highlights natural harmonic positions on the fingerboard. Fret markers, numbers, and octave zones offer multiple display modes so you can customize the view to your level and focus. Pinch to zoom Zoom in to focus on a few frets, or zoom out to see the full range — up to 36 frets across the entire fingerboard. Designed for practice Dark glass-themed interface with haptic feedback. Works on iPhone and iPad in portrait and landscape. Your instrument, scale, and display settings are saved automatically between sessions. This visual approach helps you internalize scales, understand the layout of your instrument, and discover new fingerings and melodic ideas — whether you already read music or prefer to learn by sight and pattern.

Screenshots

Pitch Shift (Key Change)2 screens
StringView4 screens

Verdict

The call

The clearest difference is price: Pitch Shift (Key Change) at Free against StringView's $2.99. StringView's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement 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

Pitch Shift (Key Change) is free to download; StringView costs $2.99 up front. Pitch Shift (Key Change) sells 2 one-off in-app purchases. StringView asks for nothing beyond the download.

UpkeepUpdate frequency

Pitch Shift (Key Change) ships an update every 2 months, StringView every 3 weeks. Both last shipped on September 21, 2026.

Scorecard4 real differences · 6 level
Pitch Shift (Key Change) versus StringView: the parameters behind the verdict, then further details
ParameterPitch Shift (Key Change)StringView
PriceFree — better$2.99
Rating4.4 (85 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings85 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size5 MB5 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.Robin Dupuy

In-app purchases

2 purchases

Pitch Shift (Key Change)

One-time2
  • 31 bands equalizer$0.99
  • Always remove banner ads.$2.99
None

StringView

No in-app purchases

Questions

Is Pitch Shift (Key Change) free?
Pitch Shift (Key Change) is free to download, with in-app purchases available.
Is StringView free?
StringView costs $2.99, with no in-app purchases.
Do Pitch Shift (Key Change) or StringView have ads?
Pitch Shift (Key Change) shows ads; StringView does not.
Which is updated more often, Pitch Shift (Key Change) or StringView?
Pitch Shift (Key Change) ships an update every 2 months, and StringView every 3 weeks. Most recently, Pitch Shift (Key Change) was updated on September 21, 2026 and StringView on September 21, 2026.

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