Any of the Adobe products can be installed on up to 3 devices for a single license such as a work laptop, a work tablet, and a phone for the same user.
This is for one user and is not able to be shared across multiple users. Each user will need their own license and need to download to their individual devices.
For users who work on shared computers, Adobe products can be accessed via the web browser with no download needed. This is ideal for users who work in computer labs or have shared desks that rotate.