Отпуск is a free utility tool developed by Vitaly Kulagin for iPhone. This app allows users to calculate the remaining vacation leave based on the current or specified date, taking into account the days already taken. It also saves the entered data about the start date of employment, the number of vacation days used, and the periods of vacation taken.

With Отпуск, users can calculate the number of remaining vacation days as of the current date by default, or they can specify any date for the calculation. The app also considers non-working holidays according to the Labor Code of the Russian Federation and automatically excludes them from the total number of vacation days.

One of the standout features of Отпуск is its flexibility in allowing users to input different numbers of vacation days provided by the employer each year, ranging from 28 to 70 days for different categories of employees. This makes it suitable for a wide range of users.

To use the app, simply enter the start date of employment at the current employer, add any periods of vacation already taken, input the date for which you want to know the remaining vacation days, and click "Start". Отпуск will then display the remaining vacation days.

Additionally, users have the option to send a report of the used vacation days, start date of employment, calculation date, days taken, and available vacation days to their email. They can also provide feedback, report issues, or make suggestions to the developer.

Отпуск is a user-friendly and practical tool for iPhone users who want to keep track of their vacation leave and plan their time off effectively.