I downloaded the zip file and went through it all and don't see the .apk file that I can use to run on my Android like I do for Coinami wallet. There is a source but maybe I have to compile it. Is there a compiled .apk file i can just run?
You can't find the apk anywhere else.
I uploaded the APK from the PlayStore for you. But of course you can't trust me, right? So you can verify that the file is legit by doing this:
1. Visit
https://md5file.com/calculator or any other SHA256 file calculator.
2. Download the APK file and select it in the MD5File website.
3. You will see that the SHA-256 generated is the same as the one found in the Samourai's github for the Release 0.97.03.
APK file:
https://www.mediafire.com/file/ympoeza670xx9mx/Samourai.ver.0.97.03.build.79.apk