These are the listings closest to TaskTimer in what they say they do. Comparable, not endorsed: the ranking is the catalog's, and the judgement is yours.
Replacing
TaskTimer
Category
Productivity · Tools
Its audience
2 users (last published figure)
Comparable listings
8
Comparable listings
TimeTrack TimerDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original3 usersCompare side by side
TimeProof TimerDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original10 usersCompare side by side
AetoDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original4 usersCompare side by side
Work TimerDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original10 users★ 5.0Compare side by side
Universal Task TimerDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original2 users (last published figure)Compare side by side
Working TimerDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original25 usersCompare side by side
Comparable listings are pre-computed from the meaning of each store listing, then shown with the audience and rating from our latest pass over the store. Access compares where each listing can run (every site, how many site patterns) and how many browser permissions it declares, against the extension it would replace. Narrower is not a verdict on safety: compare what each needs for the job.