hello John
in your answer to Charlene's question on http://help.simplenoteapp.com/customer/portal/questions/707-using-simplenote-on-android-phone-and-mac-and-pc
you wrote:
To setup syncing with Dropbox, you can visit the "Settings" page in the Web App, and under "Services" (toward the bottom), you'll see a spot to enter your Dropbox credentials. From there you can turn on syncing, and changes in Dropbox will sync to your Simplenote account, and all of its apps.
it may sound silly, but there are, indeed, more possibilities, so what "Web App" do you refer to, please ?