[yottabyte47]

The app looks nice but it has usability issues.

I downloaded the app and used it for a bit but wasn't able to figure out how to do anything besides clear the page by swiping the grabber up and so I deleted it. I hadn't read the website nor the app description and there was nothing in the app itself to indicate that I should double-tap to bring up the action sheet. (Note that in iOS in general double-tapping is typically used to zoom.)

Here are two possible solutions.

(a) on first launch show a modal dialog that says something like "double-tap the grabber to access the menu"

or maybe a better fix:

(b) have the options "behind" the paper so when the user slides the grabber up the options become visible, then if the user continues to swipe all the way up the screen, the drawing is cleared.

I'd love to chat with you about the app. Post a link to your twitter/email/smoke signal/etc if you're interested.

[ay]

The double-click menu is a bit non-intuitive, but I think the issue stems more from the perceptual "flakiness" in its detection.

Also, rather than showing a modal dialog once/doing it "under the paper", I'd track an incomplete save to camera action (incomplete swipe/swipe in progress) (btw, awesome abstraction with the full swipe!) and showing the 100->0->100% alpha transition hint "doubleclick the = area for sharing options".

Other than that little glitch this is an _awesome_ app with no extra bells and whistles. Totally keeping it for my napkin sketches!

[mcfrl]

Thanks a lot. I do consider pull to save the primary action. Double tap or shake gives you the menu, but I agree this can be simpler. It would pain me to put instructions in the app though...

[ay]

++ on the pull. What could help though is to display something transient-ish while you are "flipping the page" (to not present the direct modal choice, but to give a hint there's more). I am a relative noob in iOS coding, so not sure how easy it is.

The "real" problem that I perceived is the double-tap, and I have debugged my interaction a bit more.

What it looks like is that the triple-equal sign is a bit too small for my fat fingers. OTOH you do not want to waste the drawing space too much...

My thought would be: take a rectangle of 2x size the current triple-equal sign action area, then try to both use the drawing mechanism there, as well as to track the doubleclick-like events there - and if one happens, then undo the last drawing event (which was a part of the click, anyway).

I think this should make it easier for fatfingered people to deal with it :) And the translucent advertisement upon the swipe should take care of education, I think.

[mcfrl]

Thanks for offering solutions. It can be improved I agree. We had thought about some one off instructions like this and perhaps that's something we'll think about.

[mcfrl]

All things that have been considered, but useful feedback. I welcome talking any time @mcfrl

[mcfrl]

On second thoughts b) might be pretty cool. Nice idea.