Question: Is there any way to manually focus the camera on my Android phone?

I know that you can tap on where to focus, but that's just assisted auto focus. What I want is to be able to manually adjust the focus.

Answer: 
I couldn't find a way to do it or an app that would do it. There were a couple out there that claimed to have manual focus but basically just did what you described as "assisted auto focus."

I found this thread at XDA where some people have been looking through the code to find a way to add the manual focus. From what they found it appears that it is possible but someone has to code it. Its worth keeping an eye on it: <http://forum.xda-developers.com/showthread.php?t=630989>
My Hauwei Mate 9 has manual focus, ISO, and shutter speed options. I use it frequently for sunsets and stage lighting.