Re: Long shot... but does such an Android wallet app exist ?
As for time. It's not like there's any real rush, so a side project is fine as long as it got played with from time to time. But if it became a priority for me. I could possibly pay down the line. But dor now it's a wishlist type thing.
No worries, I'm not asking for money. Coding is one of the things that keeps me sane during the lockdown. 
I was also looking for an app like this some time ago and didn't find, so it will be useful even for me. I will work on it. Also, this isn't something that takes a lot of time or effort. A few API calls to some block explorers and a local storage can do the work. No privacy issues and no servers to mantain (which would cost money).