no iPad or iPhone version for any of these programs

Literature & Latte don’t have and will never produce version of their apps for iphone or iPad (eventhough the apps are predestinated for these kind of devices) and are therefore a poor choice. Both apps - scrivener and scrapple - are made to be creative, to take notes, jump into your work whenever (and wherever) you feel creative. But this is exactly the possibility that they are not offering. You have to go back home and open your computer and when you get there all the creativity is usually gone anyway ;) I wouldn’t recommend scrivener or scrapple because of that. There are plenty of other apps that you can use on your phone and iPad - when and whereever you are, that you can synchronize and open and edit on all devices.

me;(5 about Scapple, v1.2