Anyone have a great app on their phone that helps with meal planning?

I'd love an app where I could drag and drop certain meals around the days. I could use my notepad app and copy and paste, but I'd love to drag and drop when plans change. I could also use my tasks app to drag and drop, but I like to keep that to only to-dos and shopping lists.. I want something totally separate for meal planning.

I'm on android but please chime in if you have a good app on your iphone, since maybe it would be available on android too...!! Thanks!!!