apeFilter 4+


Designed for iPad

    • $3.99



Up to 72 Peak Filters controlled by four Spectral Grid Compilers, full AudioUnit (v3) support

apeFilter is a sophisticated Equaliser, the DSP is based on the Biquad/Cascade filters, very fast! The graphical interaction provides a great tool to design an extremely precise and smooth frequency response by directly manipulating up to 36 Peaks Filters. The Spectral Grid compilers increase the complexity and coherence between the filters bandwidth space. You can create your pitch space by the way of four different criteria of construction by determining a pitches grid: Fibonacci, Harmonic, Geometric and Scalar. Use apeFilter for sculpt your sound through the embedded sampler or LIve from Audiobus or Inter-Audio-App Input. Among the FX chain, an amazing ClassicVerb is available.

+ AudioUnit V3 (FX)
+ Inter-App Audio (FX)
+ Audiobus (Full)
+ Ableton Link
+ Audio Interface support
+ Microphone input

+ 72 Peak Filters for Spectral Grid Compilers
+ 4 Spectral Grid Compilers: Fibonacci, Harmonic, Geometric and Scalar
+ 6 Common Filters: Lowpass, Hipass, Bandpass, Notch, Lowshelf, Hishelf
+ MIDI Note On/Off messages, for playing Filters Frequency and Filters Peaks Gain
+ Audiobus and Inter-App Audio support (sender and FX)
+ Built In Stereo Sampler with varispeed
+ Control Manager LFO for Parameters
+ Midibus, Virtual Midi and Network: 14 bit NRPN controllers
+ File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy
+ Snapshot Presets Morphing Pad
+ Post Fx Chain: Stereo Delay, Amazing ClassicVerb and Dynamic compressor/expander

What’s New

Version 3.4

Maintenance Updates
Latest iOS SDK Update
Fixed an issue causing the app to crash when double tap two knobs together
Compatibility with Apple Silicon Macs

Ratings and Reviews

4.9 out of 5
29 Ratings

29 Ratings

MakeyElliot ,

All ApeSoft products are top tier!

Love all of the functionality of your apps! So useful for sound creation, field recording, music, experimental work, modular sound design & so much more!


Small recommendation or request would be to change the LFO / Accelerometer display area to be a little more clear.

I figured it out but it might be confusing for some.

Something like an XY box or shape might increase the visual appeal & simplify how the LFOs are used.

Could have speed on X & position on Y with a pinch in & out to select the position range or something like this.

Really love the app though just thought if you were to make any changes this could be an option :)

Kristal of Hummingbird Studios ,

Great tonal control

Top notch well designed total frequency control for sound engineers. Pretty sure it has good midi, but it keeps me busy enough already manually exploring it's sensitive complex options.

midiscripts ,

Amazing app!

Incredible peak multi-filter implementation. If you are sick of standard high/low-pass closings/openings in your FX here is a new universe for you to explore.

App Privacy

The developer, apeSoft, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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