Comparison

Filterstation2 vs Haaze 2

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Haaze 2

This audio processing tool offers advanced stereo widening and spatial positioning for sound streams. It provides three distinct methods for controlling stereo width across 16 frequency bands, along with individual gain control and a new intuitive user interface.

Highlights
  • 16-band stereo widening
  • Haas effect for spatial positioning
  • Pan control for individual bands
  • MS Stereo width control
  • Independent gain control per band
  • Intuitive UI with presets
  • AUv3 plugin support
Features
Read full description

Haaze 2 is a 16 band stereo widening tool that utilizes three different methods of controlling the stereo width and spatial positioning of an audio stream: • Haas – adds a small delay to the left or right audio channel, creating the perceived effect of the sound arriving from the side that’s reaching the ear first. • Pan – alters the gain level on either audio channel. All 16 bands can be panned separately, so this method is quite equal to the “split EQ” function often found on various well-rounded equalizers. • MS Stereo – controls the output stereo width on each band, from normal stereo signal to mono. There’s also a view for controlling the output gain of all bands separately. New features from version 2.0 and later: • New and more transparent crossover filters • Haas: Better control for each band • Split EQ is now called "PAN" and provides much more control • MS Stereo • Gain • Visualization • Brand new and more intuitive UI for a better work flow. • Several factory presets. Full documentation available inside the app or at https://klevgrand.se/downloads/haaze-docs/ Audio examples and more info at https://klevgrand.se/products/haaze Haaze 2 works both as a standalone app and as an AUv3 plugin.

Screenshots

Filterstation22 screens
Haaze 22 screens

Verdict

The call

The clearest difference is price: Filterstation2 at $4.99 against Haaze 2's $16.49. Haaze 2's advantage is rating (4.8 vs 4.5) and review sentiment (86% vs 75%). On ratings volume, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Filterstation2 costs $4.99 and Haaze 2 $16.49 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Haaze 2 holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 19 and 10 respectively. Written reviews point the same way: 75% of Filterstation2's written reviews are positive against 86% of Haaze 2's.

UpkeepUpdate frequency

Filterstation2 ships an update every 19 months, Haaze 2 every 10 months. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Filterstation2 versus Haaze 2: the parameters behind the verdict, then further details
ParameterFilterstation2Haaze 2
Price$4.99 — better$16.49
Rating4.5 (19 ratings)4.8 (10 ratings) — better
Positive reviews75.0% of reviews85.7% of reviews — better
Number of ratings19 — better10
Update frequencyEvery 19 monthsEvery 10 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size29 MB9 MB
Age rating4+4+
DeveloperAudio Damage, Inc.Klevgrand Produkter AB

Customer experience

Filterstation2

All ratings19 ratings
Positive84.2%
Neutral5.3%
Negative10.5%
Written reviews12 reviews
Positive75.0%
Neutral8.3%
Negative16.7%

Haaze 2

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

In-app purchases

None

Filterstation2

No in-app purchases

None

Haaze 2

No in-app purchases

Questions

Is Filterstation2 free?
Filterstation2 costs $4.99, with no in-app purchases.
Is Haaze 2 free?
Haaze 2 costs $16.49, with no in-app purchases.
Which has better reviews, Filterstation2 or Haaze 2?
Haaze 2 is rated higher. Filterstation2 averages 4.5 out of 5 from 19 ratings, while Haaze 2 averages 4.8 from 10 ratings.
Do Filterstation2 or Haaze 2 have ads?
Neither Filterstation2 nor Haaze 2 shows ads.
Which is updated more often, Filterstation2 or Haaze 2?
Filterstation2 ships an update every 19 months, and Haaze 2 every 10 months. Most recently, Filterstation2 was updated on October 11, 2026 and Haaze 2 on October 12, 2026.

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