command line time tracking, powerful visual reports in the terminal
Ranked in these QuestionsQuestion Ranking
Pro Powerful options to manipulate/change/rearrange tasks in the past
Practical when you forgot to start it or left it running, or ended up doing several tasks and not one, etc.
Pro Command line
No need to switch from the terminal.
Con Not synced
Not synced between devices (but you can rsync the .timewarrior folder if you want).