Comparison

Time Stretch (Speed Change) vs GliderVerb

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

Head to head
About

Time Stretch (Speed Change)

This music player allows real-time audio processing, including adjustable playback speed and a 31-band equalizer. It supports AUv3 effects, A-B looping, and background playback, with options to import audio files from other apps.

Highlights
  • Real-time time stretch (50-200%)
  • 31-band equalizer with presets
  • AUv3 effects support
  • A-B loop playback
  • Center Cancel/Emphasis
  • Background playback
  • Audio file export
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. - Time stretch (0.5-2.0 double speed) - 31 band equalizer (required In-App Purchase) - Reverb - AUv3 (Audio Unit v3) host If you play a musical instrument, this app should be supported by you lower the speed and play when you copy of a musical piece. [Function] - Perform time stretch in real time (50 - 200%). - 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 (speed/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 "Time Stretch" 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

GliderVerb

This app offers a unique reverberation effect that simulates a room changing shape, creating evolving soundscapes. It provides a wide range of sonic possibilities, from smooth resonances to granular disintegration, with extensive control over its parameters.

Highlights
  • Continually modulated reverb algorithm
  • Pitch resonator
  • Ribbon resonance player
  • Built-in stereo sampler
  • Control manager LFO
  • Audiobus and Inter-App Audio support
  • Preset morphing pad
Features
Read full description

GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape. It is an expanded version of an algorithm created by James McCartney for his Supercollider 2 programming language. The original algorithm had no user-variable parameters: this device adds a series of parameters to create a wide palette of effects; from evolving reverberations to granular disintegration to smooth resonances. Main Features: - Audiobus and Inter-App Audio support (sender and FX) - Continually Modulated Reverb Algorithm - Pitch Resonator - Ribbon Resonance Player - Pad impulse generator - Built In Stereo Sampler with varispeed - Control Manager LFO for Parameters - Midibus, Virtual Midi and Network: 14 bit NRPN controllers - File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy - Snapshots Presets Morphing Pad - Post Fx Chain: Low-shelf Filter, High-shelf and Compressor New Version! We removed the "annoying voice" and now you can use all the Gliderverb features, even the Pad and the Ribbon. The only limitation is you can't save new presets; but you still can load the old ones you made, using the two arrows you find on the left and right side of the preset name (top side of the main window). With the in-App purchase you can access the Preset Manager, Control Manager and MIDI enable the Pad.

Screenshots

Time Stretch (Speed Change)2 screens
GliderVerb4 screens

Verdict

The call

The clearest difference is rating: GliderVerb at 4.6 against Time Stretch (Speed Change)'s 3.6. GliderVerb also leads on ads (none vs shown) and review sentiment (80% vs 66%). Time Stretch (Speed Change)'s advantage is update cadence (every 6 weeks vs every 4 months). On price, in-app purchases, 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. Time Stretch (Speed Change) sells 2 one-off in-app purchases and GliderVerb sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

GliderVerb holds the better App Store score, 4.6 against 3.6. Both are backed by a comparable volume of ratings — 21 and 86 respectively. Written reviews point the same way: 66% of Time Stretch (Speed Change)'s written reviews are positive against 80% of GliderVerb's.

UpkeepUpdate frequency

Time Stretch (Speed Change) ships an update every 6 weeks, GliderVerb every 4 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

Scorecard5 real differences · 5 level
Time Stretch (Speed Change) versus GliderVerb: the parameters behind the verdict, then further details
ParameterTime Stretch (Speed Change)GliderVerb
PriceFreeFree
Rating3.6 (21 ratings)4.6 (86 ratings) — better
Positive reviews65.8% of reviews80.0% of reviews — better
Number of ratings2186 — better
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size5 MB13 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.Amazing Noises

Customer experience

Time Stretch (Speed Change)

All ratings21 ratings
Positive52.4%
Neutral23.8%
Negative23.8%
Written reviews38 reviews
Positive65.8%
Neutral5.3%
Negative28.9%

GliderVerb

All ratings85 ratings
Positive88.2%
Neutral3.5%
Negative8.2%
Written reviews50 reviews
Positive80.0%
Neutral4.0%
Negative16.0%

Bugs and requests

Time Stretch (Speed Change)

Not enough reviews yet to summarise bugs or requests.

GliderVerb

Reported bugs

8 issues
  • Audiobus problems restoring paid app
  • In-app purchase restore screen is blank or stalls
  • App crashes when importing samples via AudioShare
  • Cannot get back to main screen from adjustment screen
  • Menus lack exit/done/close buttons, leading to being stuck
Show 3 more
  • App crashes when trying to upgrade to full version
  • IAA bugs after recent update, worse than before
  • App crashes when recording long files for iMovie

Requested features

8 requests
  • Implement shared user presets
  • Default LFO Hz frequency to nothing or allow saving LFO presets
  • Create a visual UI or partner with UI designers
  • Add preset forward/back buttons or reduce menu diving
  • Allow apps to recognize and share samples/documents directly
Show 3 more
  • Fix IAA bugs and improve compatibility
  • Add complete bundle deals
  • Consider adding more functionality to AUv3 version

In-app purchases

2 purchases

Time Stretch (Speed Change)

One-time2
  • 31 bands equalizer$0.99
  • Always remove banner ads.$2.99
2 purchases

GliderVerb

One-time2
  • lala's presetsFree
  • Full Version$4.99

Questions

Is Time Stretch (Speed Change) free?
Time Stretch (Speed Change) is free to download, with in-app purchases available.
Is GliderVerb free?
GliderVerb is free to download, with in-app purchases available.
Which has better reviews, Time Stretch (Speed Change) or GliderVerb?
GliderVerb is rated higher. Time Stretch (Speed Change) averages 3.6 out of 5 from 21 ratings, while GliderVerb averages 4.6 from 86 ratings.
Do Time Stretch (Speed Change) or GliderVerb have ads?
Time Stretch (Speed Change) shows ads; GliderVerb does not.
Which is updated more often, Time Stretch (Speed Change) or GliderVerb?
Time Stretch (Speed Change) ships an update every 6 weeks, and GliderVerb every 4 months. Most recently, Time Stretch (Speed Change) was updated on October 23, 2026 and GliderVerb on October 26, 2026.

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