Drum plugin - GarageBand iOS

Hi there. Wondering what the best ‘drum’ app is for GarageBand in iOS that allows me to configure and map my external electronic drum kit to particular drums within the kit.

Looking for something similar to EZDrummer or Superior Drummer. Not looking for an iOS drum app that you can only play with your fingers on the screen, which it seems a lot of the drum apps are.

The drum sounds within GB are fine for me but it seems I can’t map the midi note within GB. I’m using a cheap Carlsbro 130 kit with standard midi mapping but GB can’t see the crash cymbal. I have currently re-mapped this to work in EZDrummer on an iMac but I am switching to GB in iOS and it doesn’t allow me to configure this. Unfortunately I can’t change the configuration at the hardware end.

thank you!