Comparison

GSDSP MagicDelay vs volumeCTRL

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

Head to head
About

GSDSP MagicDelay

This app offers a unique spectral delay effect with advanced control over thousands of parallel delays using a single curve. It allows for real-time modulation, tempo-syncing, and precise feedback management for expansive sonic exploration.

Highlights
  • Spectral delay with single curve control
  • Tempo-synced grids and free-flowing motion
  • Real-time curve modulation and morphing
  • dB/s feedback decay system
  • Built-in highpass and lowpass filters
  • Crossfeed for stereo image expansion
  • Feedback Over for values beyond 100%
Features
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Do we need yet another Delay? Of course! We need thousands of delays working in parallel with full spectral control. One Curve. Infinite Delays. MagicDelay lets you control thousands of spectral delays with a single, elegant curve. Apply BPM-type grids to lock your shapes perfectly to the tempo, or let them flow freely for more experimental motion. With the powerful Curve Modifier, you can modulate, morph, and reshape your delay patterns in real time — turning one curve into endless rhythmic and spectral variations. Thoughtful Feedback control Control your delay tails using either traditional feedback in percent or our unique dB-per-second decay system — created specifically to manage the feedback of many varying delay times at once. Using dB/s ensures predictable, consistent tail lengths across the entire spectrum, even in the most complex settings. Sculpt the Spectrum Refine your delays with built-in highpass and lowpass filters, adding warmth, clarity, or sparkle exactly where needed. Activate Crossfeed to expand your stereo image and create immersive, wide-angle motion. And when things get wild, use Kill to instantly mute and clear the delay line — total control at any moment. Beyond 100% Need more? Push into new sonic territory with Feedback Over, allowing feedback values beyond the traditional 100% limit. From endless atmospheric swells to self-oscillating spectral chaos, MagicDelay gives you room to explore — and break — the rules. A New Dimension of Delay Whether you’re a musician, sound designer, or producer, MagicDelay is a spectral playground built for discovery. Its multi-curve design, deep modulation system, and flexible feedback architecture make it a truly expressive tool for shaping delays far beyond the ordinary. MagicDelay is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

About

volumeCTRL

Gain precise control over your device's audio levels with this utility app. Adjust volume by percentage or dBFS, fine-tune with incremental steps, and temporarily dim or mute sound. Ideal for music, podcasts, and late-night media consumption.

Highlights
  • Precise volume adjustment by percentage or dBFS
  • Keypad for exact value input
  • Fine-tune volume with customizable step sizes
  • Temporary dim and mute functions
  • Seamless integration with device volume controls
  • Universal app for iPhone, iPad, and iPod touch
Currently charting
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volumeCTRL is a simple utility that works alongside your iPhone/iPad’s built-in volume controls to give you precise control over its level. It is designed for anyone who needs or wants tighter, repeatable control over volume level. volumeCTRL lets you set the volume level using either Percent or dBFS (decibels from Full Scale). You can key in exact values with a handy on-screen keypad. Fine tune your setting using buttons which change the value in small steps. Dim or Mute the sound when you get interrupted temporarily. volumeCTRL is the perfect iPad Split View or Slide Over companion for listening to music, audiobooks, or podcasts. Use it with your favorite music app, such as Apple Music, Spotify, Qobuz, TIDAL Music, or Pandora. With volumeCTRL, you can get your late night listening level just right when you stream movies or TV shows while everything else is quiet. If you're picky about exactly how loud your device audio is, volumeCTRL is the right app for you. FEATURES - volumeCTRL lets you set your iPhone, iPad, or iPod touch volume precisely + New Favorite Volume options let you set preferred volumes for various listening cases - Selectable Units: Percent (%) or Decibels from Full Scale (dBFS) - Virtual Keypad allows you to key in exact values - Volume Up/Down Buttons let you change the volume in fine-grained 0.5 % or about 0.5 dB steps + New in Version 1.1 You can customize the step size - Dim and Mute Buttons let you temporarily lower the volume and easily get back to your previous level - Dim lowers the volume by a fixed amount (Customizable, Default: 18 dB) Super handy for quieting down loud commercials! - Mute silences the audio completely - volumeCTRL peacefully coexists with the device’s built-in volume controls — use either and the other follows seamlessly - Supports both Dark and Light Mode Appearances - Supports Hardware Keyboards connected to iPads - volumeCTRL is a Universal App - it works on iPad, iPhone, & iPod touch - User Guide embedded in App - no internet connection required to read it - auDSPr strives to design Apps for Everyone - Languages: All auDSPr audio apps support for 简体中文, Español, русский, 日本語, Français, Deutsch, Svenska, Latviešu - Accessibility Features - VoiceOver screen reader support assists visually impaired users APPLICATIONS - Setting impactful yet safe listening levels when using headphones or in-ear monitors - Setting repeatable reference volumes for studio control rooms or audiophile listening rooms - Setting precise levels for hearing aid intelligibility SYSTEM REQUIREMENTS - BUYER BEWARE: Some Bluetooth devices have coarse volume implementations (see picture above). The coarse hardware volume defeats volumeCTRL’s fine software volume setting and prevents performance from behaving optimally! - volumeCTRL is verified to work beautifully with Apple AirPods - Compatible with iOS 11.0 & up (iPhone 5S, iPhone SE (1st Generation), iPod touch (6th Generation) & up) - Compatible with iPadOS 11.0 & up (iPad (5th Generation), iPad Pro (1st Generation), iPad Air (1st Generation), iPad mini 2,& up)

Screenshots

GSDSP MagicDelay3 screens
volumeCTRL3 screens

Verdict

The call

The clearest difference is price: volumeCTRL at $4.99 against GSDSP MagicDelay's $29.99. volumeCTRL also leads on review sentiment (45% vs 25%) and chart position (#156 vs unranked). GSDSP MagicDelay's advantage is rating (4.7 vs 3.2) and update cadence (every 5 weeks vs every 9 months). On ratings volume, ads, in-app purchases and monetization model 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

GSDSP MagicDelay costs $29.99 and volumeCTRL $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP MagicDelay holds the better App Store score, 4.7 against 3.2. Both are backed by a comparable volume of ratings — 14 and 9 respectively. Written reviews complicate that: 25% of GSDSP MagicDelay's written reviews are positive against 45% of volumeCTRL's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

GSDSP MagicDelay ships an update every 5 weeks, volumeCTRL every 9 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

Scorecard5 real differences · 6 level
GSDSP MagicDelay versus volumeCTRL: the parameters behind the verdict, then further details
ParameterGSDSP MagicDelayvolumeCTRL
Price$29.99$4.99 — better
Rating4.7 (14 ratings) — better3.2 (9 ratings)
Positive reviews25.0% of reviews45.5% of reviews — better
Number of ratings14 — better9
Update frequencyEvery 5 weeks — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#156 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size72 MB22 MB
Age rating4+4+
DeveloperGustav ScholdaauDSPr

Customer experience

GSDSP MagicDelay

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

volumeCTRL

All ratings9 ratings
Positive55.6%
Neutral0.0%
Negative44.4%
Written reviews11 reviews
Positive45.5%
Neutral9.1%
Negative45.5%

In-app purchases

None

GSDSP MagicDelay

No in-app purchases

None

volumeCTRL

No in-app purchases

Questions

Is GSDSP MagicDelay free?
GSDSP MagicDelay costs $29.99, with no in-app purchases.
Is volumeCTRL free?
volumeCTRL costs $4.99, with no in-app purchases.
Which has better reviews, GSDSP MagicDelay or volumeCTRL?
GSDSP MagicDelay is rated higher. GSDSP MagicDelay averages 4.7 out of 5 from 14 ratings, while volumeCTRL averages 3.2 from 9 ratings.
Do GSDSP MagicDelay or volumeCTRL have ads?
Neither GSDSP MagicDelay nor volumeCTRL shows ads.
Which is updated more often, GSDSP MagicDelay or volumeCTRL?
GSDSP MagicDelay ships an update every 5 weeks, and volumeCTRL every 9 months. Most recently, GSDSP MagicDelay was updated on September 22, 2026 and volumeCTRL on September 13, 2026.

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