Comparison

Pitch Shift (Key Change) vs BLEASS Shimmer

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

BLEASS Shimmer

This app offers a unique pitch-shifting reverb effect to enhance musical performances. It allows for creative sound design by emphasizing harmonics and revealing new tonal colors through its versatile processing stages. The intuitive interface and included presets make it easy to explore a wide range of spatial and ambient effects for various instruments and vocals.

Highlights
  • Unique pitch shifting reverb
  • Harmonic emphasis and tonal color
  • Multi-mode input filter
  • Dual pitch shift modules
  • Clean and rich reverb
  • Integrated ducker for rhythmic effects
  • Intuitive user interface
Read full description

The unique pitch-shifting reverb in BLEASS Shimmer makes performances dance and sing in ways you never imagined possible. Harmonics are emphasised and new tonal colours emerge as luscious washes of reverb thicken and harmonise with your performance, opening up a whole new creative dimension of spatial and ambient effects. The flexible processing architecture makes BLEASS Shimmer a highly versatile plugin overflowing with creative musical possibilities. Shape the incoming sound with the multi-mode input filter, place the two pitch-shift modules at different points in the signal chain for wildly different results, and combine them with a clean, rich reverb. An integrated ducker helps the direct signal stand out from the reverb and is perfect for rhythmic and blooming effects. This vast sonic potential is easy to tame, both live and in the studio, thanks to a clear and tactile interface designed for hands-on exploration. More than 30 included presets reveal the depth of possibilities on offer while providing great starting points for your own sound designs. From guitars and synth pads to leads, vocals and drums, BLEASS Shimmer brings exciting new dimensions to your musicianship. More information and technical specifications available on https://www.bleass.com/shimmer/ BLEASS Shimmer can be launched as an AUv3 plugin or as a standalone app. BLEASS Shimmer is also available for Windows, and macOS.

Screenshots

Pitch Shift (Key Change)2 screens
BLEASS Shimmer3 screens

Verdict

The call

The clearest difference is review sentiment: BLEASS Shimmer at 100% against Pitch Shift (Key Change)'s 50%. BLEASS Shimmer also leads on rating (4.9 vs 4.4) and in-app purchases (none vs 2). Pitch Shift (Key Change)'s advantage is price (Free vs $3.99) and update cadence (every 2 months vs every 10 months). On ratings volume, 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; BLEASS Shimmer costs $3.99 up front. Pitch Shift (Key Change) sells 2 one-off in-app purchases. BLEASS Shimmer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Shimmer holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 85 and 36 respectively. Written reviews point the same way: 50% of Pitch Shift (Key Change)'s written reviews are positive against 100% of BLEASS Shimmer's.

UpkeepUpdate frequency

Pitch Shift (Key Change) ships an update every 2 months, BLEASS Shimmer every 10 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard7 real differences · 3 level
Pitch Shift (Key Change) versus BLEASS Shimmer: the parameters behind the verdict, then further details
ParameterPitch Shift (Key Change)BLEASS Shimmer
PriceFree — better$3.99
Rating4.4 (85 ratings)4.9 (36 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings85 — better36
Update frequencyEvery 2 months — betterEvery 10 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size5 MB21 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.BLEASS

Customer experience

Pitch Shift (Key Change)

All ratings85 ratings
Positive83.5%
Neutral3.5%
Negative12.9%
Written reviews62 reviews
Positive50.0%
Neutral12.9%
Negative37.1%

BLEASS Shimmer

All ratings36 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Pitch Shift (Key Change)

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

BLEASS Shimmer

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 BLEASS Shimmer free?
BLEASS Shimmer costs $3.99, with no in-app purchases.
Which has better reviews, Pitch Shift (Key Change) or BLEASS Shimmer?
BLEASS Shimmer is rated higher. Pitch Shift (Key Change) averages 4.4 out of 5 from 85 ratings, while BLEASS Shimmer averages 4.9 from 36 ratings.
Do Pitch Shift (Key Change) or BLEASS Shimmer have ads?
Pitch Shift (Key Change) shows ads; BLEASS Shimmer does not.
Which is updated more often, Pitch Shift (Key Change) or BLEASS Shimmer?
Pitch Shift (Key Change) ships an update every 2 months, and BLEASS Shimmer every 10 months. Most recently, Pitch Shift (Key Change) was updated on November 1, 2026 and BLEASS Shimmer on November 7, 2026.

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