Wedding Planner by The Knot is a brilliant lifestyle app that soon-to-be-married couples can use in planning for their wedding! It provides a wedding checklist that you can personalize to make sure you will not forget anything as the big day approaches. Additionally, it features lots of suggestions, from wedding cakes, to venues, to vendors, and the best wedding websites to get ideas from. If you have not made any decisions yet, Wedding Planner by The Knot has a Style Quiz that you can take to help you with your preferences.