Write an Android application

I am looking to build an android app that can be used to input, track and summarise ones annual leave. No source code yet exists. To date, I have been listing the days I take off from work in excel (example spreadsheet attached) and I would like to convert this into an app. This is a small personal project that will make my life and colleagues lives just a little bit easier. The app brief is as follows. The user shall be able to specify the following: 1) user settings: - number of standard contracted hours per working day 2) the total amount of annual leave, comprised of: - statutory days - bonus days - purchased days (company benefit) - days carried over from the previous year 3) planned annual leave: - date of leave - number of hours to be taken off - description of leave The user should have the freedom to input the required information in either hours or full days. The days booked off shall be viewed in a calendar or list layout. Once the above information has been inserted into the application, the following info should be provided on a summary page: - total annual leave (repeated from (2) above) - time booked off - annual leave available - time taken off to date With regards to the user interface, I only require that it is neat, simple and intuitive. The rest of the design is up to you. Finally, I would like to be provided with an app that is ready to be used and shared along with the complete application code that can be viewed and edited in Android Studio. Please message me if you have any questions.