I love this app and wanted to upgrade to support the continued development of it, but when I went to upgrade it took me way too long to find the link to actually pay!
I had yet to hit the task limit for the free version, so perhaps I would have seen it then. However, I’d recommend not tucking it away by having to click “Settings” and then “Account.”
Maybe just put a small “account” icon (an avatar?) next to the chart icon on the main screen so that people can access their account/upgrade with one click?