Yeah, absolutely no enterprise version. If my manager asks me to use this, I'll start updating my resume.
I worked (briefly) at a place that requested updates in 15 min intervals... on a spreadsheet. No thanks!
I briefly worked for a law firm and had to track my time in 6 minute increments.
Could you work on one thing for an hour then back-fill the timesheet to reflect that?
Yes, of course, but it became quite difficult to track when there was fire fighting across several fires
"What have you been doing in the last 15 minutes?" - "I've been trying to get back into the task I was working on after my concentration was broken because I needed to update this time tracker"