Decompile/Recompile Apk on Android device So I am running Phoenix OS and I have installed Termux.

Is there a way to decompile and then recompile an apk inside of android.
I see this required for Apps here and there but I don't have a physical computer.
No, here is the official response from the developer here.
To quote 


  We leverage a couple of Java7 features that aren't completely in AOSP
  yet. Most of this being the java.nio2 library. Additionally our YAML
  library (SnakeYAML isn't compatible on top of Android).
  
  Finally, our native binary (aapt) that has builds for Mac 64/32, Unix
  64/32 and Windows doesn't have an ARM build for AOSP. That is why.