Purchase The App about android-quill HOT 1 CLOSED

The market (paid) version is automatically updated by the Android market. The 
free version is available here (on the google code web page) but you have to 
update it manually. They are the same apk.

It would be nice if the Android market would give the user the option to switch 
to the paid version but unfortunately it does not and there is nothing I can do 
about it.

In summary, you have to uninstall the free version to buy the market version. 
Make sure you save your notes before uninstalling (Use Menu->Export->"All notes 
as Quill archive"), since all app private data is erased by the uninstall.