Comparison

MicSwap Pro vs GSDSP Quantum Delay

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

Head to head
About

MicSwap Pro

Transform your device into a professional recording studio. Import or record audio, then experiment with 17 different studio microphones and environments to alter the sound. Edit, organize, and share your high-fidelity creations.

Highlights
  • Record or import audio
  • Swap between 17 modeled microphones
  • Change studio environments
  • Edit and trim recordings
  • Use with external microphones/interfaces
  • Audiobus, AUv3, IAA compatible
  • Share recordings
Read full description

A mobile recording studio. Record or import audio, swap microphones for different sounds, change studios, edit, color label, sort, share and store your recordings anywhere. Use standalone or connect an external microphone or interface and get the hifi sound of 17 different studio microphones with a swap of the screen. MicSwap Pro works with any external mic or interface compatible with your iDevice to deliver high fidelity professional sounding recordings. You can also use your Bluetooth mic to record. Great for podcasting, voiceover, music creation and more. MicSwap Pro comes with all microphones, studio environments, unlimited recording and can be used as a plugin with other apps like Garageband, etc (Audiobus, AUv3, IAA). MicSwap can also transform your iPhone or iPad into a microphone when you connect it to external speakers. If you're using a computer without a microphone, MicSwap is am easy way to add a mic to your setup so you can add voiceover to videos, record podcasts, add commentary to games and more Check out our 'Audio Recording and Mastering Bundle' which includes MicSwap Pro and AudioMaster Pro. Comes with full tech support. No sign up required, so you get to creating. "If you’re yearning to broaden your sonic palette but don’t happen to have a spare $2K to spend, you’ll like MicSwap Pro a whole lot." - MacLife "MicSwap Turns Your iPhone Into Rock And Roll" - TechCrunch "Great! If you’re yearning to broaden your sonic palette but don’t happen to have a spare $2K to spend, you’ll like MicSwap Pro a whole lot." - MacLife. "One of the best recording apps for iOS" - iPadMusic Check out our new 'Audio Recording and Mastering Bundle' which includes AudioMaster Pro and MicSwap Pro. FEATURES • Use standalone or with an external mic or interface • All microphones and studio environments included • Record using different microphones for different sounds • Swap mics to change the sound of any pre-existing audio • Adjust the gain on any microphone • Edit or trim recordings • Enable / disable live monitoring • Audiobus, AU and IAA compatible • AudioCopy enabled • Change backgrounds by swapping studio environments • Color label recordings • Sort recordings by date, title, duration, mic & color • Record in Wav or M4a • Read descriptions by tapping 'S' on each mic • Reorder microphones. Put your favorites first. • Share your recordings anywhere 17 MICROPHONES MODELED • Shure SM7b (Podcasting) • Rode NTG3 (Boom Mic) • Shure SM58 • RCA 77 • Sony Lavalier • Megaphone • Amperite SR80 • Neumann U47 • Neumann U87 • Neumann KM140 • Neumann CMV563 • AKG 414 • AKG C12VR • Royer Ribbon R121 • Old Timey Radio Mic • Ribbon Fathead 1 • Ribbon Fathead 2 ALSO BY FUTURE MOMENTS: Video Audio Splitter MSV Remix Remix the Audio of Your Video MicSwap Remix AI Audio Stem Separator Crystal Audio AI Audio Cleanup Magic MAIVE Ai Video Generator VideoVerb Add Reverb to Your Videos Hear Boost Get Super Hearing & Recording MicSwap Mic Modeler & Recorder MicSwap MultiTrack Multitrack Mic Modeler & Recorder MicSwap Video Edit Video Audio with Mic Models & FX MicSwap Camera The Best Sounding Video Camera AudioFix Denoise & Clean the Sound of Your Video VideoMaster Instant Audio Post-Production for Videos AudioVerb Add Reverb & Delay to Your Audio AudioMaster Audio Mastering for Podcasts & Music Volume Booster Easily Boost the Sound of Your Audio or Video For an optimal audio experience, please use headphones. SHARE & SYNC iCloud, Facebook, SoundCloud, Twitter, SMS, Email, Dropbox, Google Drive, Airdrop, etc. Import/Export audio over USB or WiFi using iTunes File Sharing

About

GSDSP Quantum Delay

This app offers a vintage-inspired stereo delay effect with advanced modulation, flexible filtering, and precise timing controls. It allows users to sculpt unique echo textures, from warm analog sounds to complex, evolving soundscapes.

Highlights
  • Vintage-inspired stereo delay
  • Deep modulation system
  • Flexible filtering (LPF, HPF, BPF)
  • Precise timing controls (BPM, ms)
  • Switchable stereo/dual mono modes
  • Advanced modulation sources (LFO, Random, Envelope)
Features
Read full description

A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. Classic Delay, Reinvented Quantum Delay 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 switchable lowpass, highpass, and bandpass filters 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. Stereo or Dual Mono Every section of Quantum Delay — delay, filter, and feedback — can switch between stereo and dual mono modes. Create tight, controlled stereo images or break them apart for wide, offset, unpredictable spaces. Dual mono modulation unlocks complex stereo interplay and beautifully asymmetric echoes. Modulation Without Limits Quantum Delay integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, stereo controls, 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 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

MicSwap Pro4 screens
GSDSP Quantum Delay3 screens

Verdict

The call

The clearest difference is review sentiment: GSDSP Quantum Delay at 100% against MicSwap Pro's 50%. GSDSP Quantum Delay also leads on price ($14.99 vs $99.99) and rating (4.8 vs 4.0). On update cadence, 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

MicSwap Pro costs $99.99 and GSDSP Quantum Delay $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP Quantum Delay holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 4 and 17 respectively. Written reviews point the same way: 50% of MicSwap Pro's written reviews are positive against 100% of GSDSP Quantum Delay's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
MicSwap Pro versus GSDSP Quantum Delay: the parameters behind the verdict, then further details
ParameterMicSwap ProGSDSP Quantum Delay
Price$99.99$14.99 — better
Rating4.0 (4 ratings)4.8 (17 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings417 — better
Update frequencyEvery 6 weeksEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size348 MB94 MB
Age rating4+4+
DeveloperFuture MomentsGustav Scholda

Customer experience

MicSwap Pro

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

GSDSP Quantum Delay

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MicSwap Pro

No in-app purchases

None

GSDSP Quantum Delay

No in-app purchases

Questions

Is MicSwap Pro free?
MicSwap Pro costs $99.99, with no in-app purchases.
Is GSDSP Quantum Delay free?
GSDSP Quantum Delay costs $14.99, with no in-app purchases.
Which has better reviews, MicSwap Pro or GSDSP Quantum Delay?
GSDSP Quantum Delay is rated higher. MicSwap Pro averages 4.0 out of 5 from 4 ratings, while GSDSP Quantum Delay averages 4.8 from 17 ratings.
Do MicSwap Pro or GSDSP Quantum Delay have ads?
Neither MicSwap Pro nor GSDSP Quantum Delay shows ads.
Which is updated more often, MicSwap Pro or GSDSP Quantum Delay?
MicSwap Pro ships an update every 6 weeks, and GSDSP Quantum Delay every 6 weeks. Most recently, MicSwap Pro was updated on October 26, 2026 and GSDSP Quantum Delay on October 27, 2026.

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