Guvnor
Da Speculative Spectacle®
I hear that, well with that said doesn't seem you have many options but do some research maybe you will find something.The sampler is too much of headache. The sequencer I do like
Beatmaker 2 was good but it doesn't work with audiobus and other apps makes it suck now.
You can also look into something called AUM, then look for a daw like app and a sampler like app and make them work with each other through AUM.