The most interactive time tracking app
TimeTurtle is probably the most interactive time tracking app. It is based on a linear timeline that you navigate to select the time range of interest.
The overview panel shows a summary of the current current time range using an interactive 3D chart. In this way TimeTurtle provides a very direct and effective way to analyse your spent time. Click on the bars to select a project. From there you can e.g. export to PDF or Excel.