The Fiddlicator is an audio tool which can simulate various kinds of acoustic environment by the convolution of the input signal with a custom impulse response.
It was developed to simulate an acoustic body resonance for electric musical instruments (mainly the electric violin), but it can also be used for a cab simulation with proper impulse response files (not included).
The impulse response files can be imported via iTunes share or via 'Open in' option from another application.
The Fiddlicator is not appropriate to use as convolution reverb engine, because it can not process impulse response files longer than ~0.35 sec. (1.4 sec. with Fiddlicator Plus & MIDI extension)

See demo videos at:

Facebook page:

Main features:
- main filter is based on convolution
- own custom IR kernel files could be imported
- 6-band parametric equaliser (low-shelf, 4xpeak, high-shelf)
- delay & reverb
- high-pass and low-pass filter on input
- low latency
- IR files could be imported from standard sound files (wav...) or csv file (via 'Open in...' or iTunes share)
- mono input/output 44.1kHz (allows channel selection)
- Audiobus and IAA support
- background audio mode

What's New

Version 0.9.10

- fixed random noise sometimes produced after buffer size change

Ratings and Reviews

4.3 out of 5
7 Ratings
7 Ratings

Very good but we need AUV3 support

Joe Salyers

I love this app but only one instance isn’t enough. I’m asking Please to the developer add AUV3 compatibility, Audiobus and inter app audio are the past AUV3 is the future. I will gladly pay extra for an AUV3 as an in app purchase just to have multiple instances of this effect. The EQ inside this effect is amazing and works like a charm and a convolution reverb with this level of tweak abilities is perfect for iOS.

Big Mistake


Tried to use this app with no success. The only thing that worked was the volume control. I updated to the $4.99 version and same thing. I uninstalled, reinstalled and it made no difference. Tried to contact the company twice and no response. Then a recurring charge shows up monthly. Avoid this app and the people who designed it until they act worthy enough to even be on ITunes.

Great free app


I use this regularly for audio processing. Eq + delay & verb. Works great, seldom crashes in GarageBand & AudioShare. Amazing & useful app for free. Thank you for this!


Martin Varga
18.5 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 Martin Varga
In-App Purchases
  1. MIDI extension $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like