I don't believe we have any confirmation of Android, but there will be an app for Windows.

Which likely covers most of their bases, I imagine the crossover of people with iPhones and a Windows PC is far larger than those with a Mac and an Android phone.

But who knows, maybe we will see one for Android at some point.

Will they have apps for non-Apple platforms? Otherwise how will they bring them to the masses

No, but it will be accessible by every law enforcement agency. /s