Insanely expensive weekly subscriptions are the new (scammy) meta in B2C apps. I find it off-putting as well.

People are just hoping they can skip from "hobby project" all the way to a project that funds a couple salaries just by overcharging for subscriptions. Apps that are meant to cater towards unorganized people are the worst for this because they know you won't stick with it. A week trial is just short of how long you'll likely use it before you forget or realize it's not working for you.