I am fine with paying a subscription fee if I am using your cloud service, or other things that need constant upkeep. I am also fine with paying for advanced features, like more than one script per library or more than two linked entries.

I am not fine with paying a subscription fee to unlock advanced features that provide zero impact to your ability to provide the product; if you just decided to abandon the app right now and never updated it again, none of the features I want to use would actually be impacted, as all my information would be stored locally.

I have tried to find an alternative app, but this suits my purposes perfectly aside from this one problem. I am willing to give you money to unlock these features, but I don't understand why a single payment would not be sufficient for this purpose.

If I ever need cloud usage, I am 100% willing to pay a subscription fee. But for now, it would be extremely helpful if you had a way to only pay for the features I actually need.