I expect a lot from great developers. 3 years and $23,000 in data entries but its time to move on. Consider the following improvements: 1. Redo the interface. The app calculates data fine but its simply not pleasurable to input or navigate. 2. Maintenance data is difficult to adjust and enter, Ive given up on this feature long ago. 3. Why not iCloud sync? 4. Some machines use hours not mileage. Please add an option for hours. 5. Make it a universal app. This should be mandatory.