Adexin, as a car rental app development company, strongly recommends determining which functions and features of the new custom software are critical for the business and need to be implemented and tested in the first place. This phase can also be called the MVP phase. Usually, we follow the Kanban methodology during the car rental app development journey. This gives the project flexible planning, fast output, clear focus, and transparency during the car rental app development cycle. We apply a full-picture reporting approach to make sure all parties are clear about the progress. This approach includes each team member's daily status reports, the whole team's weekly reports, biweekly demos, and monthly invoicing.