Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.Download on the App Store
Audiobus is the app that makes the rest of your setup better.
EQ Matching/Fingerprint EQ - Duplicate Almost Any Tone, Including Guitar Amps + Cabinets
In this short video, he only uses a Wampler Pantheon Deluxe overdrive pedal and Logic's Match EQ plugin - no amp modeler, cabinet, IR, or effects, other than doubling it (recording two mono tracks and hard-panning each, with each track's Match EQ having the same settings).
On iPadOS, FabFilter Pro-Q 3 has an EQ Match feature, and allows you to use a reference file.