FAC Bandit
"A multiband audio effect that splits the audio signal into three bands of frequencies defined by adjustable crossover points. Each band is processed independently by its own effect processor and the outputs are then recombined to produce the final effect." from the App Store description.
App type: App and AUv3
App store link: 
FAC Bandit
Developer: Frederic Corvest
Developer AB Forum Handle: @FredAntonCorvest
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