Comparison

Time Stretch (Speed Change) vs RRS EQ3

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

RRS EQ3

This audio effect plugin offers vintage-inspired tonal adjustments with five broad, interacting bands. It emulates an '80s approach to frequency shaping, allowing for precise control over your mix's clarity and low-end response. A demo version is available for trial before unlocking the full unlimited experience.

Highlights
  • Standalone and AUv3 plugin
  • Modeled vintage EQ
  • Multiple fixed and boost-only bands
  • Stereo, Mid, or Side EQ modes
  • Undo/Redo and A/B comparison
  • Scalable GUI
Read full description

EQ3 AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the EQ3 AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQ3 AUv3 plug-in comes as In-App Purchase. In the '80s it was the first to use a different approach to tonal adjustments. In conventional analog equalizers, whether they are shelving, sweepable, graphic or parametric types, various sections of the audio spectra are boosted or attenuated by adding or subtracting bandpasses. In this case, frequency shaping is achieved by summing bandpasses. Our emulation of this method is quite similar to the original and improved with additional possibilities of digital technology. Now you can hear it for yourself. There are five broad, overlapping, interacting bands: 10 (Sub), 40, 160, 650 and 2.5 кHz, along with the «rock (airy) band» control, which is an HF boost-only control. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage EQ; • Boost only shelf at 2.5 kHz, 5 kHz, 10 kHz, 20 kHz and 40 kHz; • 2.5 kHz fixed boost and cut shelf; • 650 Hz fixed boost and cut bell; • 160 Hz fixed boost and cut bell; • 40 Hz fixed boost and cut bell; • SUB (10 Hz) fixed boost and cut bell; • Stereo (Mono), Mid or Side EQ modes; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. When using the EQ3, remember that the bands are broad, approximately 2 octaves. They overlap one another. For example: when boosting the 10 kHz «rock band» to a +6 position on the knob, to keep the response flat through in 2.5 kHz region you should rotate the 2.5 kHz coarse knob to about a -1 position. The amount you back off the 2.5 kHz control should, of course, be set by ear. Following this kind of procedure will accomplish a more airy sound, with much more clarity. You can accomplish the same thing for the low frequency response by applying the same principles. The EQ3 will reach further into your mix than you've ever heard before with minimal phase distortion. As a result, you may need to take a little time and «play around» with the controls on the EQ3 before you can make intuitive adjustments. To use EQ3 as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — EQ3 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

Screenshots

Time Stretch (Speed Change)2 screens
RRS EQ34 screens

Verdict

The call

The clearest difference is rating: RRS EQ3 at 4.8 against Time Stretch (Speed Change)'s 3.6. RRS EQ3 also leads on ads (none vs shown) and review sentiment (100% vs 66%). On price, ratings volume, update cadence and in-app purchases 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 RRS EQ3 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

RRS EQ3 holds the better App Store score, 4.8 against 3.6. Both are backed by a comparable volume of ratings — 21 and 25 respectively. Written reviews point the same way: 66% of Time Stretch (Speed Change)'s written reviews are positive against 100% of RRS EQ3's.

UpkeepUpdate frequency

Time Stretch (Speed Change) ships an update every 6 weeks, RRS EQ3 monthly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Time Stretch (Speed Change) versus RRS EQ3: the parameters behind the verdict, then further details
ParameterTime Stretch (Speed Change)RRS EQ3
PriceFreeFree
Rating3.6 (21 ratings)4.8 (25 ratings) — better
Positive reviews65.8% of reviews100.0% of reviews — better
Number of ratings2125 — better
Update frequencyEvery 6 weeksMonthly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.010.0 — better
Further details — not scored
Size5 MB23 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.RRS, OOO

Customer experience

Time Stretch (Speed Change)

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

RRS EQ3

All ratings25 ratings
Positive96.0%
Neutral0.0%
Negative4.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Time Stretch (Speed Change)

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

RRS EQ3

One-time1
  • RRS EQ3 Unlimited$4.99

Questions

Is Time Stretch (Speed Change) free?
Time Stretch (Speed Change) is free to download, with in-app purchases available.
Is RRS EQ3 free?
RRS EQ3 is free to download, with in-app purchases available.
Which has better reviews, Time Stretch (Speed Change) or RRS EQ3?
RRS EQ3 is rated higher. Time Stretch (Speed Change) averages 3.6 out of 5 from 21 ratings, while RRS EQ3 averages 4.8 from 25 ratings.
Do Time Stretch (Speed Change) or RRS EQ3 have ads?
Time Stretch (Speed Change) shows ads; RRS EQ3 does not.
Which is updated more often, Time Stretch (Speed Change) or RRS EQ3?
Time Stretch (Speed Change) ships an update every 6 weeks, and RRS EQ3 monthly. Most recently, Time Stretch (Speed Change) was updated on November 1, 2026 and RRS EQ3 on November 3, 2026.

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