The Optimal Distance app is dedicated to helping you plan and manage your trip bills. Features include:
1. [Trip Bills] records your trip expenses, allowing you to clearly understand how much you spent and what you used them for.
2. [Trip Schedule] helps you track your itinerary and train schedules, keeping track of your daily trips.
3. [Pending Trips] keeps track of your planned and completed trips, helping you avoid forgetting about them.