recommendation for notepad/checklist app with same data accessible on two phones?

[DWT]

I recently purchased a second phone, running Jelly Bean 4.1.2, and already
have one running ICS 4.0.4. When I got the first one, I looked for a
notepad and checklist app, tried one or two that didn't do the job, and
settled on Mighty Frog's Simple Notepad (seems there are several by that
name, so that's why I specified the developer).

Now I'd like to be able to share notes and checklists among the two phones
and my desktop PC, and I'd put up with retyping my current data once to enter
it into a new application (one of the reasons that desktop PC access would be
nice).

Google Keep seemed like the logical choice, but

a. it does not support organization into folders: everything is in either
Notes or Archive with no further hierarchies or levels, so I can't, for
example, have a Groceries folder holding a list for each store I need to
visit;

b. there is no way to collapse a note or a checklist, but rather its entire
content takes up screen space even when you want to read or edit other notes
or checklists that are in the same one of the two master folders (Notes and
Archive); and

c. its checklist editor, at least in the version current then, was a
disaster, doing things like adding an item that singlehandedly duplicated the
contents of all other items, or deleting all items and leaving an empty
checklist.

The app I've been using has some hack to share notes and checklists through
Dropbox, but its use is unclear, and enabling it slows the app down by
consulting Dropbox for updates whenever one opens a note or a checklist,
since data are replicated on both phones and not just kept in, pardon the
expression, the cloud.

Do the cognoscenti of alt.mobile.android have any recommendations for what I
seek?

Some notes:

1. My budget is $0.00.
2. For anything private, I can continue to use Simple Notepad locally
without Dropbox [uninstalled the plug-in anyway] and just type those few
sensitive things twice (once into each phone), so security issues with
on-line storage don't bother me.
3. Lack of access at the desktop machine would be a disappointment but not a
dealbreaker.
4. A web site with a good interface for mobile browsers would do, but an app
would be preferable.

--
David W. Tamkin

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