Adobe is porting some of its CC mobile apps to Android. Shape CC, Brush CC, and Color CC are available in the Google Play store.
I'm not surprised iOS has so many more of these apps than Android. It's more difficult to develop for the Android platform because there are so many different devices with varied features, processors, screen resolutions, etc. Let's not forget about the various UI skins, carrier bloatware and other stuff that makes it difficult to roll out updates for Android. I still prefer the Android platform since I can manage my files, music and other data how I choose to do so rather than iTunes or iCloud telling me how I can do it. Android definitely has its pros and cons.
Shape CC seems kind of like a solution in search of a problem. It doesn't work any better than the built-in tracing tools within Illustrator -or even Photoshop for that matter (via converting selections into work paths). Vector tracing tools are in need of another technology leap, but I don't think priorities in graphics software development are going in that direction.
The mobile CC stuff that appeals to me most is the Adobe Ink & Slide devices for the iPad. It's too bad Ink & Slide don't work with Android devices. Adobe Draw CC and Sketch CC aren't available for Android yet either.