Work&Payment app for iPhone and iPad

The application allows you to keep track of current and completed tasks or work, control full or partial payment for them. Payment accounting can be carried out both per volume and per unit of measure (hour, m2, m3, etc.) with control of the amount of work and cost per unit of measure. The tree structure allows you to group tasks as you like (by customer, type of work, etc.). The number of nesting levels is unlimited. The application will be useful to everyone working with customers to control the execution and payment of orders (software developers, builders, service workers, etc.)
Tasks and task groups are highlighted in color:
In work - standard color
Completed and paid - gray
Completed and unpaid - orange
Switching between all tasks and tasks in work is done with a long press