I bought a $300 fake Roomba thing. It was on clearance.
And i fought against it for years. But ended it up coming in clutch for a lot of reasons.
It did not have an app, just a IR controller. Its pretty dumb. It bumps into everything. It gets stuck under things. I sometimes have to create a maze so it cleans a specific spot.
Its been a habit of mines to avoid anything with an app that requires internet access. But the product lines are shrinking, and I know at some point, if I want a Roomba, I'll need to invite always-on AI or whatever.