GSDSP Quantum Filter vs luapsel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GSDSP Quantum Filter
This audio effect plugin offers analog-modeled filters with flexible routing and dynamic modulation for creative sound design. It provides extensive control over tone shaping and complex filtering with various filter types and configurations.
- Analog-modelled filters
- 11 filter modes
- Series and parallel routing
- Dynamic modulation support
- Stereo and dual mono modes
- MIDI control integration
Read full descriptionHide full description
Analog warmth meets flexible routing and dynamic modulation in a filter workstation built for creative sound design. Analog-Modelled Filters Quantum Filter uses resonant, analog-modelled filter designs that behave smoothly and musically across the entire spectrum. With no cramping, stepping, or digital artefacts, the filters remain stable even under rapid modulation. At high resonance settings they can reach self-oscillation, similar to classic hardware circuits. Filter Types & Routing Choose from 11 filter modes, including Lowpass, Highpass, Bandpass, Notch, Shelving options, Bell, and Ladder Lowpass in 1–4 pole configurations. Combine filters in series (up to three stages) or parallel (up to two), resulting in over 2,000 possible routing combinations for detailed tone shaping and complex layered filtering. Built for Modulation Designed to handle fast, artefact-free modulation, Quantum Filter responds cleanly even under rapid parameter changes. Its stability makes it suitable for dynamic environments, rhythmic modulation, or complex movement across multiple filter stages. Stereo and Dual Mono Switch between stereo and dual mono modes to shape the stereo image. In dual mono mode, left and right channels can move independently, enabling asymmetric movement, wider imaging, or separate modulation paths for each side. MIDI Control Quantum Filter integrates ADSR & AR modulators that respond directly to MIDI, allowing envelope-driven filter motion that behaves like a synthesizer’s filter section. This integration adds expressive control for rhythmic gating, animated sweeps, and dynamic shaping based on your playing or sequencing. Quantum Filter 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
luapsel
Create calming electric guitar ambience with reversed samples and built-in effects. Offers polyphonic playback, multiple articulations, and real-time sound shaping tools for unique musical textures.
- Polyphonic reversed guitar sounds
- Round Robin sampling
- Multiple articulations
- Built-in delay, reverb, chorus
- Real-time low-pass filter
- ADSR Release control
- Standalone samples available
Read full descriptionHide full description
luapsel: Unique Evolving Electric Guitar Ambience luapsel is a collection of Electric Guitar samples, meticulously multi-sampled in Round Robin and reversed in the most transparent way possible to offer your projects an easy-to-use calming vibe. Play around with built-in delay, reverb, and chorus effects, or go au naturel. Sound design is a breeze with real-time filters, release control, and tuning options. Get luapsel for free inside Decent Sampler or just enjoy the raw samples, or grab the new improved app for just $1. Features -Polyphonic reversed guitar sounds -Round Robin sampling for nuanced playback -Four articulations: Original, Looped, Fast, & Slow -Built-in delay, reverb, and chorus effects -Real-time low-pass filter (Tone) -ADSR Release control and real-time sampling tuning -Available for Decent Sampler or as standalone samples
Screenshots
Verdict
The clearest difference is price: luapsel at $0.99 against GSDSP Quantum Filter's $14.99. luapsel also leads on update cadence (every 6 days vs every 5 weeks) and chart position (#189 vs unranked). GSDSP Quantum Filter's advantage is rating (5.0 vs 4.5). 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
GSDSP Quantum Filter costs $14.99 and luapsel $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GSDSP Quantum Filter holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 3 and 4 respectively.
GSDSP Quantum Filter ships an update every 5 weeks, luapsel every 6 days. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.
| Parameter | GSDSP Quantum Filter | luapsel |
|---|---|---|
| Price | $14.99 | $0.99 — better |
| Rating | 5.0 (3 ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 5 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #189 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 77 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Scholda | OSC Audio |
Customer experience
GSDSP Quantum Filter
luapsel
In-app purchases
GSDSP Quantum Filter
No in-app purchases
luapsel
No in-app purchases
Questions
Is GSDSP Quantum Filter free?
Is luapsel free?
Which has better reviews, GSDSP Quantum Filter or luapsel?
Do GSDSP Quantum Filter or luapsel have ads?
Which is updated more often, GSDSP Quantum Filter or luapsel?
Other comparisons















