Data sharing & third parties:

In an interview with Reuters published in July 2017, iRobot CEO Colin Angle suggested his company might one day share the mapping data collected by Roomba robotic vacuum cleaners with tech companies such as Amazon, Google, or Apple. Within two years, he explained, a detailed diagram of the floorplan in your home could be highly valuable to such tech giants. Reuters subsequently corrected the article, saying iRobot might share the data free of charge, not sell it.

Data collection:

Several robotic vacuums come with smartphone apps. These apps aren't necessary to operate the vacuums, but they’re useful for scheduling or remotely starting and stopping cleanings, checking a robot’s progress, or viewing maps of the vacuum’s path around your home to see whether it has missed any spots.

Shifting expectations for data sharing:

Third party James Baussmann, the company’s public relations manager for North America, told CR that iRobot won’t be sending its data to third parties, at least for now. “iRobot believes that in the future, this information could provide even more value for our customers by enabling the smart home and the devices within it to work better, but always with their explicit consent.” 
“Vacuum data isn’t the most sensitive in the world,” says Justin Brookman, CR’s director of consumer privacy and technology policy. “These maps may be rudimentary now, but it seems likely that they’ll continue to improve over time in order to more efficiently clean your home. It would be nice if these companies made affirmative promises not to sell your information.”

Recording paths in your home:

iRobot is not alone. Many robotic-vacuum manufacturers are now recording the paths of their appliances and uploading them to a server. Consumers can then view that data via the company’s app on your smartphone. 

[Excerpts gathered from CR Article: Can a Robotic Vacuum Replace Your Upright Vacuum?]

CR Article: Can a Robotic Vacuum Replace Your Upright Vacuum?