I'm new to posting, so please bear with me.
I love, love, love to cook and have amassed a huge collection of recipes. I still depend on cookbooks, of which I have collected from everywhere (much to my husband's chagrin.) But my go-to on a day to day basis is the app mentioned earlier, Paprika. It is wonderful. I have entered and downloaded thousands of my favorite recipes. I can create menu plans and grocery lists in a snap. I download a backup every month, just in case the internet goes wonkers. I cannot say enough about the app. I use it in my kitchen on a tablet when cooking, on my computer when I am meal planning, and on my phone when I'm at the grocery store and it is all synced. Perhaps it is because I'm in IT that I go to an app, but it is amazing. Oh, and when I take a dish to someone's house and they want the recipe, I send it right then and there from my phone. Did I mention I love Paprika?