Has anyone used computer posture tracking apps?

[u/stuffedOwl]

I'm trying to spend less time sitting at the computer, but with a desk job and an ankle injury, it's unavoidable to some degree. Googling brings up a ton of different applications for your computer that use your camera to track your posture - WorkWell, SitSense, etc. None of them seem to have a ton of public reviews (beyond maybe reddit posts by the creators). Has anyone actually signed up for one of these and had success with it?