Most (all?) of these examples are products where the product is the UX not the functionality. macOS has dictation, there are free screen recording apps and you can use a normal text editor for your blog. There is no need to create a half-assed software that you don't understand and might break unpredictably at some point when there are free alternatives; and even open source ones you can download today.

The interesting question is why the OP had bought these subscriptions in the first place if he was happy with less-polished alternatives.