Sales Book

This application helps you manage revenue, expenses, and profits easily and efficiently. It's suitable for small businesses like restaurants.

Example:
- If you own a small restaurant: The application will help you record all revenue and expenses for the day. From there, you can calculate your profit daily, or possibly weekly, monthly, and yearly.

Main features of the application:
- Record daily revenue and expenses.
- Statistics on revenue, expenses, and profit by day, week, month, year, or any time period.
- Online data synchronization.