"The apps also make it easy to auto-ship brush heads, which could help ensure you replace them more regularly."I wonder if app tracks wear and starts suggesting a new toothbrush when its worn out. That would likely be real reason the app exists.
Why is everything smart these days... they made by dumb humans who aren't perfect and don't see the problems they make.
Shame its only those who understand tech that don't want smart everything.
https://www.engadget.com/best-electric-toothbrush-133036339.html