One of the reasons that I am writing this from iPad since it is the best there is for musicmaking apps. It is ok at a lot of things, and isn't really any good for delving into cryptocurrencies, but such is life, you can't have everything.
If you want a music app and have iOS based device, try Propellerheads Figure. Its cheap, its fun. It is not a sampler, so you can't do anything with yiur voice though.
Nice! I have been playing with a free voice changer and it's endless fun. I don't think I'll ever make music seriously, but I do enjoy the amazing tools available now. I'll definitely look into Propellerheads Figure. Thanks for the recommendation!