Apple plans to launch tools that let two iPhone users share augmented reality, while limiting the personal data sent to its servers.

Augmented reality allows viewers to see virtual structures superimposed on their surroundings via smartphones or other devices.

Apple designed its two-player system to work phone-to-phone because of privacy concerns. Its system differs from Google’s AR, which requires scans of a player’s environment to be stored in the cloud.

The development of AR has sparked privacy concerns because, if AR apps become commonplace, people are likely to scan their homes and other personal spaces routinely.