Apps similar to SentryPC include ActivityWatch, which is free and open source. Other options are TimeScribe, RescueTime, ManicTime and Project Hamster. You're spoiled for choice with Time Tracking Tools like SentryPC: we list more than 50 alternatives for Mac, Windows, Linux, Android and iPhone.
Klokki was created to solve an annoying issue that many freelancer and makers face, which is forgetting to start and pause a timer, during the work. The solution is automation, but we knew that people still want to control what should be tracked.
EventRecorder is a simple application to record timed events. It is useful to keep track of the time spent on different tasks, and to generate reports.
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