Works beautifully in Loopy Pro
Unfortunately, it does not work yet in Luma Fusion (which would be really handy). It just immediately locks up.
Fix that and you’ll still get the same five star review… but I would be even happier! :-)

Archived App (Last seen on 23 Feb 2026)
This is an archived listing of the app previously available on the App Store.This app simulates acoustic environments using impulse responses for electric instruments or cabinet simulation. It supports various file formats for impulse responses and offers low latency stereo processing. Try the free original app if unsure.
1.0
December 11, 2023
Fiddlicator2 Core is an AUv3 audio effect plugin for iOS that simulates acoustic environments by convolving input signals with custom impulse responses. It's designed for electric instruments but can also be used for cabinet simulation.
Impulse response files can be imported directly from the iOS Files app or via the iOS Share functionality. Supported file formats include WAV, CSV, TXT, and BDD files.
Yes, Fiddlicator2 Core supports both mono and stereo impulse response files. You can also load separate impulse responses for each audio channel.
The convolution engine supports impulse response lengths of up to 65,000 TAPs, allowing for detailed and complex acoustic simulations.
Yes, Fiddlicator2 Core is available for free. If you are unsure if it's the right fit, you can try the original Fiddlicator App, which is also free.
Fiddlicator2 Core is supported on iPhone, iPad, and iPod devices. It requires iOS 11 or later.
Fiddlicator2 Core was last updated on December 11, 2023, with version 1.0. Future updates will depend on developer plans and user feedback.
No, Fiddlicator2 Core does not contain advertisements. It is a free application with no in-app purchases or ads.