Some of the best meal planning apps are no longer available and others aren't free. Copy Me That is an awesome alternative, combining recipe management, meal planning, and shopping list generation.
Browser extensions and mobile browser buttons let you import recipes from any site. One of the nice things about the import is it automatically selects the important parts of the recipe and unchecks the unnecessary ones (such as grocery shopping links some sites add into their recipes), and you can tag, edit, rename, or insert a new photo for each recipe. You can also create your own recipes here or import ones from the Copy Me That community.
The shopping list is basically what you'd expect: a checklist of ingredients generated by the recipes you select. You can view the list by food category or by recipe.
The meal planner is dead simple to use. Just select the recipe from your queue and choose the date from the weekly view. You can add notes to each date and add ingredients for the recipes to your shopping list from here. Unfortunately, the weekly view is fixed — you can't see, say, Friday to next Friday (although you can choose the start of the week as either Saturday, Sunday, or Monday) — and there's no monthly view.
Still, if you're looking for a free (and ad-free) meal planner, give Copy Me That a look.