Filterstation2 vs Virtual ANS 3
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.
Virtual ANS 3
This app simulates a unique photoelectronic musical instrument, allowing users to draw music as spectrograms. It functions as a graphics editor to convert sound to images and vice versa, enabling the creation of atmospheric sounds and microtonal music.
- Unlimited pure tone generators
- Sonogram editor for drawing and playing spectra
- Convert sound to image and vice versa
- MIDI device support
- Polyphonic synth mode with MIDI mapping
- Audio Unit Extension (AUv3) and Audiobus support
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Virtual ANS is a software simulator of the unique Russian synthesizer ANS - photoelectronic musical instrument created by Evgeny Murzin from 1938 to 1958. The ANS made it possible to draw music in the form of a spectrogram (sonogram), without live instruments and performers. It was used by Stanislav Kreichi, Alfred Schnittke, Edward Artemiev and other Soviet composers in their experimental works. You can also hear the sound of the ANS in Andrei Tarkovsky's movies Solaris, The Mirror, Stalker. The simulator extends the capabilities of the original instrument. Now it's a full-featured graphics editor where you can convert sound into an image, load and play pictures, draw microtonal/spectral music and create some unusual deep atmospheric sounds. This app is for everyone who loves experiments and is looking for something new. Key features: * unlimited number of pure tone generators; * powerful sonogram editor - you can draw the spectrum and play it at the same time; * any sound (from a WAV file or a Microphone/Line-in) can be converted to image (sonogram) and vice versa; * support for MIDI devices; * polyphonic synth mode with MIDI mapping; * supported file formats: WAV (only uncompressed PCM), PNG, JPEG, GIF; * Audio Unit Extension (AUv3), Audiobus; * many new features compared to version 2.3; see the full list: https://warmplace.ru/soft/ans/changelog.txt Homepage, user manual and versions for other systems: https://warmplace.ru/soft/ans
Screenshots
Verdict
The clearest difference is update cadence: Virtual ANS 3 at every 3 months against Filterstation2's every 19 months. Virtual ANS 3 also leads on rating (4.8 vs 4.4) and review sentiment (88% vs 75%). Filterstation2's advantage is price ($4.99 vs $5.99). On ads, in-app purchases, monetization model and device support 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 Virtual ANS 3 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Virtual ANS 3 holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 18 and 59 respectively. Written reviews point the same way: 75% of Filterstation2's written reviews are positive against 88% of Virtual ANS 3's.
Filterstation2 ships an update every 19 months, Virtual ANS 3 every 3 months. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.
| Parameter | Filterstation2 | Virtual ANS 3 |
|---|---|---|
| Price | $4.99 — better | $5.99 |
| Rating | 4.4 (18 ratings) | 4.8 (59 ratings) — better |
| Positive reviews | 75.0% of reviews | 87.5% of reviews — better |
| Number of ratings | 18 | 59 — 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 | 12.0 |
| Further details — not scored | ||
| Size | 29 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Audio Damage, Inc. | Alexander Zolotov |
Customer experience
Filterstation2
Virtual ANS 3
In-app purchases
Filterstation2
No in-app purchases
Virtual ANS 3
No in-app purchases









