“Free to download and use; optional Pro ($39.99/year with a 7-day trial, or lifetime) adds monthly/all-time statements and” — its launch post
ChargesFree planYearlyOne-time
You are sizing up a market. These filters come from what each product claims about itself: how it positions itself, what it charges, who it names as an alternative, what proof it publishes.
“Free to download and use; optional Pro ($39.99/year with a 7-day trial, or lifetime) adds monthly/all-time statements and” — its launch post
“Block apps, reclaim your time Only for iPhone” — its home page