Iplan.ai is a smart travel planning app that uses artificial intelligence to create personalized itineraries based on user preferences, trip purpose, interests, budget, and length of stay. It allows users to access their itineraries anywhere and make changes as needed. The app has a free pricing model and offers features such as saving time, creating a smart itinerary, and receiving updates via email. It has received positive user feedback and offers articles on popular destinations to aid travel planning.