Comparison

MixMaster A/B vs GSDSP Quantum Delay Lite

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

Head to head
About

MixMaster A/B

This app allows users to instantly compare two audio files side-by-side with synchronized playback and visual feedback. It's designed for music producers, audio engineers, and audiophiles to make critical listening decisions with precision.

Highlights
  • Instant A/B audio file switching
  • Synchronized playback
  • Waveform visualization
  • Real-time spectrum analyzer
  • Loop regions for focused listening
  • Support for common audio formats
Features
Read full description

COMPARE AUDIO FILES LIKE A PRO MixMaster A/B is the essential tool for anyone who needs to compare audio files with precision and confidence. Whether you're a music producer evaluating different mixes, an audio engineer comparing masters, or an audiophile testing file formats, MixMaster A/B gives you the tools to hear every difference. INSTANT A/B SWITCHING The heart of MixMaster A/B is its seamless switching between two audio files. Load your files, hit play, and toggle between A and B instantly—no interruption, no delay, perfectly synchronized. This is how professionals make critical listening decisions. VISUAL FEEDBACK • Waveform Visualization: See the amplitude and dynamics of both files at a glance • Real-time Spectrum Analyzer: Watch the frequency content as your audio plays • Side-by-side Comparison: Visual confirmation of what your ears are hearing PRECISION PLAYBACK CONTROLS • Loop Regions: Focus on specific sections that matter most • Synchronized Playback: Both files stay perfectly in sync when switching • Instant Toggle: Switch between A and B with a single tap • Pause, Play, Repeat: Full control over your listening session PERFECT FOR: Music Producers • Compare different mix versions • Evaluate mastering changes • Test compression and EQ settings • Make confident final decisions Audio Engineers • Compare before/after processing • Evaluate different mastering approaches • Test format conversions • Quality control checks Audiophiles • Compare file formats (MP3 vs. FLAC vs. WAV) • Test different rips or sources • Evaluate audio quality • Settle debates with data Content Creators • Compare audio edits • Test different export settings • Evaluate noise reduction • Choose the best take WHY MIXMASTER A/B? Traditional audio comparison means switching between apps, losing your place, and relying on memory. MixMaster A/B eliminates the guesswork with instant, synchronized switching and visual feedback. You'll hear differences you never noticed before. SIMPLE, FOCUSED, POWERFUL We built MixMaster A/B to do one thing exceptionally well: compare audio files. No bloated features, no complicated workflows—just load two files and start comparing. The interface is optimized for one-handed use in portrait mode, perfect for quick comparisons on the go. SUPPORTED FORMATS • MP3 • M4A / AAC • WAV • AIFF • And other common audio formats PRIVACY FIRST • All processing happens on your device • No audio files uploaded to servers • Your audio stays private NOW COMPLETELY FREE! PROFESSIONAL RESULTS, MOBILE CONVENIENCE Whether you're in the studio, at home, or on the go, MixMaster A/B gives you professional-grade A/B comparison in your pocket. Make better decisions, hear more detail, and trust your ears. Download MixMaster A/B today and discover what you've been missing.

About

GSDSP Quantum Delay Lite

This audio effect plugin offers vintage-inspired stereo delay with deep modulation, flexible filtering, and creative timing options. It allows for precise control over echoes, from warm analog sounds to shimmering textures, and integrates an advanced modulation system for unique sound design.

Highlights
  • Vintage-inspired stereo delay
  • Deep modulation system
  • Flexible filtering
  • Creative timing controls
  • Precise feedback control
  • Crossfeed and Over-Feedback options
Read full description

A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. This is the free Lite version of Quantum Delay. Enjoy it? Go pro with the full version. Classic Delay, Reinvented Quantum Delay Lite takes the charm of a vintage stereo delay and fuses it with our next-level modulation system. Switch between the warm character of Tape mode and the pristine clarity of Fade mode, lock to BPM (including 5-tuplets) or dial in precise times in milliseconds. Use the Fine control for subtle push-and-pull micro-timing — or modulate your delay lines in ways traditional delays could only dream of. Sculpted Echoes Shape your repeats with a lowpass filter placed directly in the feedback path. Add modulation to create evolving tones, gentle movement, or drifting, frequency-shifting echoes. From warm analog-style rolls to shimmering, swirling textures, it’s all there. Feedback with Precision Control your delay tail behavior using either traditional % feedback or our modern dB-per-second decay system — ideal for predictable, musical decay even when the feedback path becomes complex. Enable Crossfeed for classic ping-pong stereo bounce, or push into Over-Feedback to create dense, self-building echoes that drift toward infinity. Modulation Without Limits Quantum Delay Lite integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, and more. Use LFOs, Random Generators, 2D modulators, Envelope Followers, Macros, and even chaotic systems to push your echoes far beyond traditional delay behavior. Or use our parameter randomisation feature to explore the plugin’s sound at random. Quantum Delay Lite 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

Screenshots

MixMaster A/B1 screens
GSDSP Quantum Delay Lite3 screens

Verdict

The call

The clearest difference is rating: GSDSP Quantum Delay Lite at 5.0 against MixMaster A/B's 4.0. GSDSP Quantum Delay Lite also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence 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. MixMaster A/B sells 1 one-off in-app purchase. GSDSP Quantum Delay Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GSDSP Quantum Delay Lite holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

UpkeepUpdate frequency

MixMaster A/B ships an update every 6 weeks, GSDSP Quantum Delay Lite every 2 months. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
MixMaster A/B versus GSDSP Quantum Delay Lite: the parameters behind the verdict, then further details
ParameterMixMaster A/BGSDSP Quantum Delay Lite
PriceFreeFree
Rating4.0 (4 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings4 — better3
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size30 MB58 MB
Age rating4+4+
DeveloperNicholas McLarenGustav Scholda

Customer experience

MixMaster A/B

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GSDSP Quantum Delay Lite

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

MixMaster A/B

One-time1
  • Remove Ads$12.99
None

GSDSP Quantum Delay Lite

No in-app purchases

Questions

Is MixMaster A/B free?
MixMaster A/B is free to download, with in-app purchases available.
Is GSDSP Quantum Delay Lite free?
GSDSP Quantum Delay Lite is free to download, with no in-app purchases.
Which has better reviews, MixMaster A/B or GSDSP Quantum Delay Lite?
GSDSP Quantum Delay Lite is rated higher. MixMaster A/B averages 4.0 out of 5 from 4 ratings, while GSDSP Quantum Delay Lite averages 5.0 from 3 ratings.
Do MixMaster A/B or GSDSP Quantum Delay Lite have ads?
MixMaster A/B shows ads; GSDSP Quantum Delay Lite does not.
Which is updated more often, MixMaster A/B or GSDSP Quantum Delay Lite?
MixMaster A/B ships an update every 6 weeks, and GSDSP Quantum Delay Lite every 2 months. Most recently, MixMaster A/B was updated on October 12, 2026 and GSDSP Quantum Delay Lite on October 9, 2026.

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