Apps Like WOW Filterbox for iPhone and iPad
Stream audio and apply filters
Apply audio filters with 21 types including lowpass, bandpass, and comb. Adjust filter slopes up to 48 dB using SVF, diode ladder, and transistor ladder. Add distortions and modulations for sound effects. Output processed audio files.
WOW Filterbox screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.
Dagger synth
Jaroslaw Jacek
Model analog synths with precision
Allows users to create and manipulate analog-style sounds. It features monophonic and paraphonic modes with four oscillator sections. Each oscillator includes wave shape morphing and harmonic content control.
Cyclop for iPad
Sugar Bytes GmbH
Generate monstrous bass sounds
Create bass-heavy sounds with a monophonic synthesizer. Adjust frequency ranges and apply mid/side processing for stereo imaging. Control low-end thickness and shape sub-bass tones. Export audio files and integrate with digital audio workstations.
DrumComputer - Synthetic Beats
Sugar Bytes GmbH
Create drum patterns and sequences
Create and customize drum kits with samples, presets, and modulation options. Sequence patterns with intuitive editing tools. Import custom samples and use intelligent randomizers for new drum ideas. Export and share drum sequences.
Klankwelle
Greg Okopal
Create and control synthesizers
Create and control up to 8 synthesizers simultaneously using a built-in keyboard or step sequencer. Connect external MIDI devices for input. Adjust sounds with a dynamic compressor and 10-band graphic equalizer.
BeepBoop
David Gamble
A strange noise-making device.
The app is a sound-making device with signal processing blocks. It features an oscillator, a transistor-ladder VCF, a pitch-shifter, and an LFO.
Accordion Vintage
Alessandro Petrolati
Play samples and loop notes
Play virtual with 1300 looped samples and 4 velocity layers. Include key-on and key-off sounds for realism. Use Audiounit support, iOS Universal compatibility, and Audiobus integration for audio routing.
Popsicle FX
Kai Aras
Process audio with 24 effects
Apply multi-effects to audio with two stereo effect engines using 24 algorithms. Configure effects in series, parallel, or stereo split modes. Control parameters via an XY pad with recordable motion. Adjust settings for precise sound shaping.
Agonizer
Kai Aras
Play, edit, and share synth bass tracks
Create and manipulate monophonic bass sounds with a synthesizer featuring 140+ factory presets. Apply stereo effects and control via ROLI Seaboard or other MPE controllers.
Discovery AUv3 Synth
DiscoDSP LLC
Create and edit patches with layers
Create and customize sounds using 4 layers per patch. Access over 3,500 presets including percussion sets and Nord Lead 2 patches. Import patches from Clavia Nord Lead 2. Adjust filters, envelopes, and modulation options.
Zeeon synth
Jaroslaw Jacek
Play virtual analog synths with precision
A virtual-analog synthesizer with circuit-modeling engine. Users can create and edit patches, adjust oscillator settings, and apply filters. Modulation effects include LFOs and envelopes. Export audio files and control parameters via MIDI.
AUFX:Dub
Kymatica AB
Create delay effects with precise control
Create stereo delays with adjustable parameters for various sound effects. Simulate tape characteristics including noise and warble. Apply filters in the delay loop for dub-style tones. Use stereo delay, detune, and ping-pong options.
F-16 Filter
Blamsoft, Inc.
Apply filters and adjust frequency response
Adjust audio signals with sixteen modes and resonance controls. Modify frequency response visually. Apply saturation for analog-style clipping. Blend wet and dry signals. Use a 4 pole lowpass mode for classic Moog ladder sound.
Bit Maestro
David Blake
Manipulate audio bits with precision
Allows users to manipulate audio at the bit level. Users can mute or invert individual bits, create distortions, and rearrange bit order. It introduces harmonics and offers advanced sound shaping features.
DRC - Polyphonic Synthesizer
Imaginando Lda
Design analog synths and shape sounds
Create and customize analog-style sounds with up to 8 voices. Adjust oscillators, sub-oscillator, and noise source. Use AUv3 for integration with DAWs. Design patches with classic synth parameters.
iSyn Poly
Harry Gohs
Synthesize, sequence, and record music
Create and edit music with three virtual analog synthesizers featuring three oscillators, a lowpass filter, and modulation routing. Include a drum machine for rhythm creation. Save and export projects directly from the .
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.