Comparison

Time Stretch (Speed Change) vs EqualizeMusic

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

EqualizeMusic

Features
Read full description

This app is the minimal version of a player with a 10-band equalizer. For reasons of simplification, it only contains the functions that are absolutely necessary for the player and equalizer. 
 With the app you can
 ・ create playlists from the music files stored on the device or in cloud storage. The tracks are saved in the sandbox and can therefore also be played offline. To use a specific cloud storage, the corresponding app must be activated. ・ define individual equalizer settings for the individual tracks. 
 ・ make a default setting for the individual playlists.
 ・ use a switch to determine whether the playlists are played with the individual EQ settings of the tracks or with the playlist preset.

Screenshots

Time Stretch (Speed Change)2 screens
EqualizeMusic4 screens

Verdict

The call

The clearest difference is ads: EqualizeMusic at none against Time Stretch (Speed Change)'s shown. EqualizeMusic also leads on update cadence (every 2 weeks vs every 6 weeks). On price, in-app purchases, 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

Both are free to download. Time Stretch (Speed Change) sells 2 one-off in-app purchases and EqualizeMusic sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Time Stretch (Speed Change) ships an update every 6 weeks, EqualizeMusic every 2 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Time Stretch (Speed Change) versus EqualizeMusic: the parameters behind the verdict, then further details
ParameterTime Stretch (Speed Change)EqualizeMusic
PriceFreeFree
Rating3.6 (21 ratings) — better—
Positive reviews65.8% of reviews—
Number of ratings21 — better—
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size5 MB1 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.Karl-Heinz Loch

In-app purchases

2 purchases

Time Stretch (Speed Change)

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

EqualizeMusic

One-time1
  • Any number of playlists$0.99

Questions

Is Time Stretch (Speed Change) free?
Time Stretch (Speed Change) is free to download, with in-app purchases available.
Is EqualizeMusic free?
EqualizeMusic is free to download, with in-app purchases available.
Do Time Stretch (Speed Change) or EqualizeMusic have ads?
Time Stretch (Speed Change) shows ads; EqualizeMusic does not.
Which is updated more often, Time Stretch (Speed Change) or EqualizeMusic?
Time Stretch (Speed Change) ships an update every 6 weeks, and EqualizeMusic every 2 weeks. Most recently, Time Stretch (Speed Change) was updated on October 23, 2026 and EqualizeMusic on October 24, 2026.

Other comparisons