one time payment
I fail to see how it is fair for you to charge monthly fees for features that are installed on my device. It is unfair to attempt to charge me on recurring basis for features and functions that do not require recurring costs on your end. BTW I did pay for all the upgrades back when it was just papyrus, so I don't think I'm being cheap by only asking to pay once per feature.
We do have recurring costs on our end (e.g. PDF support). We are also constantly developing and improving the app. We hope that our premium users find the app worth much more than the small amount of money we ask for!
I quit using the app a couple years back. Thanks for your timely response.