Filterstation2 vs WOV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Filterstation2
This app offers a versatile dual filter effect for music production, inspired by classic hardware. It features twelve filter algorithms, an envelope follower, and multiple operating modes for creative sound shaping. Its user-friendly interface and resizable GUI make it a powerful tool for producers.
- Twelve filter algorithms
- Envelope follower with sidechain
- VCA mode for tremolo/gate
- LFO with tempo sync
- Serial, parallel, and stereo modes
- Resizable GUI
- Cross-platform preset manager
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Filterstation 2 is the Audio Damage dual filter, built for sound design and performance rather than corrective EQ. It runs two resonant filters in series, in parallel, or split across the stereo field, with twelve filter algorithms and a full set of modulation tools for movement, distortion, and rhythm. FEATURES Twelve filter algorithms, including our 914 bandpass and Filterpod lowpass models, a clean state-variable filter, and an MS20-style filter, covering lowpass, highpass, bandpass, and notch. Each of the two filter slots can run a different one. Serial, parallel, and true stereo routing. Run the filters one into the next, side by side, or split hard left and right. Envelope follower with stereo sidechain. Drive the cutoff from a signal's own dynamics for auto-wah, or feed in an external source so one track opens the filter on another. LFO with twelve patterns, internal or tempo-synced. VCA mode for tremolo and gating. FSU section for extra signal hacking, for when clean is not the point. Resizable vector interface, sharp on every iPhone and iPad display. Universal preset system. XML-based presets move between iOS and the desktop versions. IN USE... Sweep the cutoff by hand for filter rises and drops. Set the envelope follower to track the input for an auto-wah that moves with your playing. Patch a kick into the sidechain to duck a pad or bassline in time. Run the two filters in series for steep formant shapes, or in parallel for wide dual-band sweeps. Tempo-sync the LFO for rhythmic gating, then bring in the FSU section when the part needs to fall apart. Filterstation 2 runs as an AUv3 plugin inside any compatible iOS host, including AUM, Cubasis, Drambo, apeMatrix, and GarageBand. It is also available for macOS, Windows, and Linux as a desktop plugin, and presets move freely between them. Requires iOS 13 or later. An AUv3 host app is recommended. Features • Twelve different filter algorithms, including MS20 emulation and our classic 914 bandpass and Filterpod lowpass models. • VCA mode for tremolo and gate effects. • LFO with twelve different patterns, and both internal and tempo sync modes. • Envelope follower for dynamic control of filter frequency. • Serial, parallel, and true stereo operating modes. • Easy-to use interface for quick programming. • Vector-based resizable GUI. Use just the filter screen, slide the controls over it, or (in hosts that allow it) open up the whole UI. • Cross-platform XML-based preset manager; copy your desktop presets to the iOS version using Handoff, or share them with your friends and in forums. • Full PDF manual available at Support link.
WOV
This audio effect plugin transforms sounds into a wide range of textures, from tremolo to glitchy stutters. It offers deep customization of rate, depth, and waveform, with an eight-step sequencer for accents. Requires an AUv3 host app to function.
- AUv3 audio effect
- Creates sound textures
- Customizable rate and depth
- Morphable waveforms
- Eight-step accent sequencer
- Stereo widening effects
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WOV for iOS is an AUv3 effect for making a wide range of textures out of your sounds – from familiar tremolo waves to glitchy stutters and everything in between. WOV lands on iOS with an injection of inspiring presets by Richard Devine and Stèv! *** Please note: WOV is an Audio Unit extension (AUv3) – it only works in an AUv3 host app like Garageband, AUM, Cubasis, Modstep, Beatmaker 3, etc... *** HOW IT WORKS / DESCRIPTION The Rate Section This section determines the rate or speed at which WOV operates. Rate can either be assigned in Hz, or in fractions of a beat in sync with a hosting app – to switch between Hz and sync modes, use the switches at the bottom center of WOV. It’s easy to set up a static rate for WOV and leave things at that – but WOV has much more to offer! To the right of the Rate control, the bipolar Response knob sets the sensitivity with which WOV’s rate will either slow down or speed up depending on the volume of the incoming signal. The bipolar Variation control further introduces randomized amounts of variation to the rate – at its extremes going as far half the rate (knob to the far left) or twice the rate (knob to the far right). The Depth Section Depth sets the amount of modulation over the dry signal – to the left and it’s more subtle, all the way to the right and WOV will act as a repeating gate. Silence introduces more randomness to the plugin, increasing the likelihood that the amplitude will be zero for some cycles. The Waveform Section The waveform of a tremolo effect is essentially its repeating envelope. Classic tremolo effects offer stock waves – WOV, being a K-Devices product, is much more customizable! The Wave knob morphs between a quasi-sine shape (far left) and a slightly rounded-off square shape (far right). Peak acts as a kind of attack control for the waveform – far left for a sharp attack, or far right to reach the peak more gradually. Finally, the Warp knob allows you to either squeeze or expand the waveform, affecting the length of each sound. When the Wave control is set to a full square, Warp acts as a duty cycle/pulsewidth control. The Accents Multislider The eight-step sequencer uses a multislider to set the relative accent value for each beat of the rate. The slider adjusts between two and eight steps in length, and a button offsets the accents going to the right channel one step over from the left (note that this requires Stereo to be enabled). — Get Wide WOV can either preserve the stereo placement of its input signal, or it can add stereo offset to the output signal. Enabling the Stereo switch directly affects the Response, Silence, and Sequencer for a wider sound. Go By Feel As part of encouraging more musical and creative applications of WOV, in addition to using symbols for controls, the controls in WOV do not have individual readouts. We encourage you to let your ears determine the right knob positions whenever you can! If you’d like a precise readout, however, you can see/edit it by clicking on any parameter and looking in the upper-right corner of WOV. Icons By default, all labels are graphical – for text labels, click the symbols/text label switch in the lower-right had corner.
Screenshots
Verdict
The clearest difference is update cadence: WOV at every 3 months against Filterstation2's every 19 months. WOV also leads on rating (4.8 vs 4.5) and iOS requirement (9.3 vs 12.0). Filterstation2's advantage is review sentiment (75% vs 67%) and price ($4.99 vs $5.99). 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
Filterstation2 costs $4.99 and WOV $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WOV holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 19 and 23 respectively. Written reviews complicate that: 75% of Filterstation2's written reviews are positive against 67% of WOV's, so the app with the better star average is not the one people write more warmly about.
Filterstation2 ships an update every 19 months, WOV every 3 months. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.
| Parameter | Filterstation2 | WOV |
|---|---|---|
| Price | $4.99 — better | $5.99 |
| Rating | 4.5 (19 ratings) | 4.8 (23 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 19 | 23 — better |
| Update frequency | Every 19 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 29 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Audio Damage, Inc. | K-Devices |
Customer experience
Filterstation2
WOV
In-app purchases
Filterstation2
No in-app purchases
WOV
No in-app purchases









