Hours Minutes Calculator Pro is a handy time calculation tool available for iPhone users. Developed by ShuMei Liang, this app is designed to help users easily add or subtract time values in hours and minutes. With its simple and intuitive interface, it provides a convenient way to perform time calculations on the go.

The app offers several different calculators to cater to various time calculation needs. The "Seconds Calculator" allows users to enter time values in hours, minutes, and seconds to add or subtract time. The "Minutes Calculator" is specifically designed for calculations involving hours and minutes. The "Time Calculator" enables users to input values in days, hours, and minutes for time calculation. Lastly, the "Date Calculator" allows users to add or subtract time values in days, weeks, months, and years.

With Hours Minutes Calculator Pro, users can save time and effort when performing time calculations. Whether you need to calculate work hours, plan events, or manage schedules, this app provides a reliable and efficient solution for all your time calculation needs.