Meal planning App?

Not sure exactly what you're looking for, but you could take a look at this site:

https://www.eatthismuch.com/

Basic functions are free (for sure enough to let you know what it does). It lets you pick a dietary style, number of calories per day, desired number of meals/snacks daily, then recommends a balanced menu, including recipes.

Truth in advertising: I don't use it, because I don't love structure. Instead, I did this, because I wanna eat what I wanna eat 😆, just at the right calorie level, with decent nutrition:

http://community.myfitnesspal.com/en/discussion/10636388/free-customized-personal-weight-loss-eating-plan-not-spam-or-mlm/p1

I've test-driven the eatthismuch site to see what it does, and it looks pretty nice, for a person who wants more structure than I prefer.