Low-end project management software is good for smaller projects and freelancers. It will let you define milestones and produce Gantt charts and reports. Low-end packages cost up to £100. You may also be able to find free project management software such as Trello. Mid-range project management tools can handle complex projects with thousands of tasks. The most popular is Microsoft Project. It's the closest thing there is to industry standard project management software and costs around £600. High-end tools can manage multiple projects made up of thousands of tasks. They show you how changing one project will affect others and allow several project managers to work together. High end packages start at £1,000.