What app do you use to keep track of your portfolio? I tried the excel sheet mentioned on this page, but sadly it doesn’t work with Google sheets (I don’t have excel). I found this app: https://play.google.com/store/apps/details?id=io.getdelta.android
It is easy to use and pretty straightforward. There are still a few things that could be better, but the devs respond quickly on the slack channel and fix bugs rather fast.