Apologies for the long delay in response, my friend.
We'd of course love to offer our Apps to users of all smart-devices. Besides it likely boosting instrument sales for non-iOS users, it'd more importantly let our customers enjoy their instruments more fully, as you describe above. iOS is one platform for all devices, and easy enough to update when new OS versions pop up, which is not the case with Android currently. That said, we are definitely looking into porting as many Apps as possible over to Android, but don't have a definitive ETA as of yet. There's rumor of a unified OS Google's been working on for Android, which will make creating Apps much easier for developers across all their compatible devices. Fingers crossed!
Thanks for your support as a musician and forum participant, and please let me know if there's anything else I can help you with on this end!