ddtctmcc vs GSDSP Quantum Filter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ddtctmcc
This app translates touch gestures into MIDI Control Change messages. It offers two recording modes, scene management for storing settings, and extended timing controls for loops. It can run standalone or as an AUv3 plugin.
- 2D touch area for MIDI values
- Loop and Once gesture recording
- Scene support with transition times
- Extended timing and host tempo sync
- Multiple output settings per instance
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ddtctmcc "2D Touch Control To MIDI Control Change" This is a touch control app that is designed to work with touch gestures and output MIDI Control Change messages. This app is available as standalone version that can run in background and as an AUv3. It features basic features: - 2D Touch Area where you can set 3 MIDI values (X, Y and Touch On / Off) that will be sent as MIDI CC messages - Two gesture recording modes: "Loop" and "Once": -- In "Loop" mode the gesture is immediately repeated infinitely. You can restart it and change the direction of gesture loop -- In "Once" mode the gesture is recorded silently and only played back later when "trigger" or "+pause" buttons are pressed. ... and some important extras: - Scene support. You can store all settings in a "scene" and switch between them. There is an option to set a transition time between scenes to morph loops. - Extended timing support. Start/stop and speed of the loop can also be recorded and played back. The recorded gesture loop can follow the host tempo when running in plugin mode. - Layers. Each instance of the app supports multiple output settings; scene switch is synchronised across all layers.
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
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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
Screenshots
Verdict
The clearest difference is price: ddtctmcc at $5.99 against GSDSP Quantum Filter's $14.99. ddtctmcc also leads on update cadence (daily vs every 5 weeks) and iOS requirement (9.0 vs 12.0). On rating, ratings volume, ads 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
ddtctmcc costs $5.99 and GSDSP Quantum Filter $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ddtctmcc against 5.0 for GSDSP Quantum Filter. Both are backed by a comparable volume of ratings — 3 and 3 respectively.
ddtctmcc ships an update daily, GSDSP Quantum Filter every 5 weeks. The most recent releases landed on September 28, 2026 and September 22, 2026 respectively.
| Parameter | ddtctmcc | GSDSP Quantum Filter |
|---|---|---|
| Price | $5.99 — better | $14.99 |
| Rating | 5.0 (3 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Daily — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 7 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexey Nadzharov | Gustav Scholda |
Customer experience
ddtctmcc
GSDSP Quantum Filter
In-app purchases
ddtctmcc
No in-app purchases
GSDSP Quantum Filter
No in-app purchases
Questions
Is ddtctmcc free?
Is GSDSP Quantum Filter free?
Which has better reviews, ddtctmcc or GSDSP Quantum Filter?
Do ddtctmcc or GSDSP Quantum Filter have ads?
Which is updated more often, ddtctmcc or GSDSP Quantum Filter?
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