Activity and Project Panagement

 Allows users to create and assign tasks, set deadlines, and track progress on projects and tasks in real-time.

 Allows users to collaborate and communicate with team members and stakeholders, including file sharing, messaging, and commenting.

 Allows users to track the time spent on tasks and projects, and generate detailed time reports for billing and invoicing.

 Allows users to track and manage project budgets, expenses, and invoices, and generate financial reports.

 Allows users to store, share, and access project-related documents, such as contracts, plans, and specifications.

 Allows users to view project timelines and schedules using Gantt charts and calendars, and track progress and milestones.

 Allows users to view and analyze project data using various visualization tools (e.g. charts, graphs, maps) to identify trends and patterns, and track performance over time.

 Allows users to set up and receive notifications and alerts for tasks and project activities, such as deadlines, progress updates, and changes.

 Allows user to create different roles and permissions for users, such as project manager, team member, etc. 

 Allows data from the app to be exported and imported to other software such as  (Customer Relationship Management) CRM,  (Enterprise Resource Planning) ERP and accounting systems. 

Allows the app to work offline for use in areas without internet connection.

 Note that, These features may vary between different activity tracker apps. It's important to evaluate the features of a specific app and ensure that it meets your specific needs.