Fuel Cost Calculator: Trip is a utility application designed for iPhone users that simplifies travel planning by estimating fuel costs and consumption. The app requires users to input the distance of their trip, the fuel efficiency of their vehicle, and the current gas price. It then calculates both the estimated cost and the amount of fuel required, providing results in various units for convenience. This functionality is particularly beneficial for those looking to budget their travel expenses effectively.

In addition to cost estimation, the app also allows users to calculate their vehicle's fuel consumption based on the distance traveled and its fuel efficiency. This dual functionality makes it a valuable tool for drivers who want to keep track of their fuel usage and expenses. The app operates under a free license with optional subscription features for unlimited access, ensuring that users can manage their fuel costs with ease.