GSDSP MagicFilter vs pOus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GSDSP MagicFilter
This audio effect plugin allows for intricate, non-linear filter shaping and dynamic spectral transformations. Create unique soundscapes by designing custom filter curves and modulating them for subtle to extreme audio manipulation.
- Multi-curve spectral filtering
- Independent filter amounts per frequency
- Morph between four filter curves
- Curve Modifier for shifting and inverting
- Global cut/boost controls
- Built-in lowpass and highpass filters
- Wet/dry mix control
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This Spectral Processing Workstation lets you craft evolving, non-linear filter shapes and movements impossible to achieve with analogue EQs. Multi-Curve Spectral Filtering MagicFilter is a multi-curve spectral filter and EQ workstation designed for detailed, creative frequency shaping. Apply independent filter amounts per frequency or frequency range, then mix, modulate, and spread your curves to create anything from subtle, organic movement to extreme spectral transformations. Beyond Conventional EQ Unlike analogue or traditional digital EQs, MagicFilter operates in the frequency domain, enabling filter curves and dynamics that would be impossible with hardware. Design non-linear, highly customized shapes and introduce dynamic movement through modulation. Morph seamlessly between four different filter curves, and use the Curve Modifier to shift, invert, or skew them — even in stereo — for precise and flexible control over spectral motion. Global Controls & Fine Shaping Quickly adjust cut and boost amounts to refine your overall curve, and use the built-in lowpass and highpass filters to set the tonal boundaries of your sound. Fine-tune the balance using wet gain and dry/wet control, enabling anything from subtle enhancement to bold, transformative filtering. These controls ensure fast, intuitive workflow while offering deep flexibility. MagicFilter 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
pOus
This app emulates analog drum machine bass drums with adjustable tuning and decay. It offers MIDI OUT functionality for envelope follower data and a scale mode for playing musical scales. Designed for musicians using AUv3 hosts.
- BassDrum emulation
- Adjustable tune and decay
- MIDI OUT envelope follower
- Scale mode for musical notes
- AUv3 instrument
- MIDI CC routing
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Concept: The app is an AUv3 instrument that emulates the so-called “BassDrum” of analog drum machine. In addition it features MIDI OUT functionality of Envelop Follower, that is, the user can send out this instrument's unique envelop via midi CC for modulating external plugins. Also there is "scale mode" where the user can play "pOus" with musical scale like Bass. System Requirements: AUv3 host that has a flexible capability of MIDI routing (AUM, apeMatrix, etc) Usage: There are 9 sliders & one button. Tune: BassDrum’s fundamental frequency (30hz - 160hz). text-editable. Decay: determines its duration. Amp: audio’s decibel representation. MIDI OUT: whether the functionality of envelop follower is turned on or off (default: off) MIDI Gain: gain amount of MIDI out Offset: balances the output parameter’s value Channel: determines MIDI channel MIDI CC: determines the destination MIDI CC number. text-editable Scale Mode: This is a sort of Bass mode, that is, it can play musical scale in response to incoming MIDI notes. Button: triggers the instrument. Recommended Scheme: drum machine (MIDI out) -> “pOus” -> audio effect (compressor, saturator etc)
Screenshots
Verdict
The clearest difference is price: pOus at $2.99 against GSDSP MagicFilter's $29.99. pOus also leads on chart position (#198 vs unranked). GSDSP MagicFilter's advantage is update cadence (every 6 weeks vs every 4 months) and ratings volume (3 vs 1). On rating, 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 MagicFilter costs $29.99 and pOus $2.99 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 GSDSP MagicFilter against 5.0 for pOus. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
GSDSP MagicFilter ships an update every 6 weeks, pOus every 4 months. The most recent releases landed on September 22, 2026 and September 6, 2026 respectively.
| Parameter | GSDSP MagicFilter | pOus |
|---|---|---|
| Price | $29.99 | $2.99 — better |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #198 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 52 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Scholda | Satoshi Kajii |
Customer experience
GSDSP MagicFilter
pOus
In-app purchases
GSDSP MagicFilter
No in-app purchases
pOus
No in-app purchases
Questions
Is GSDSP MagicFilter free?
Is pOus free?
Which has better reviews, GSDSP MagicFilter or pOus?
Do GSDSP MagicFilter or pOus have ads?
Which is updated more often, GSDSP MagicFilter or pOus?
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