Web Ui layout editor for Android & iPhone?

I'm looking for an app that would easily draw or drag and drop website layout ui. I prefer for Android, but if you know as much as you can please list them for me.

Basically it's planning for website or app, by draw an ui and so on Thanks.

I searched mostly through Google Play and nothing.

Post this question again in the correct category:

Consumer Electronics >> Cell - or - Mobile Phones & Plans.

You're more 'likely' to get some answers there!