Starting next month, LastPass will no longer allow a free account to be used on multiple types of devices (computers and mobile) at the same time. Users will be forced to select either a ‘Computer’ or ‘Mobile’ device platform that they wish to use the free service on. LastPass Free users will not be able to use their devices on a different category of devices, they can use it on unlimited devices in the same category. After the third change, users will be stuck on that platform unless they upgrade to a LastPass Premium or Families account.
Source: https://www.bleepingcomputer.com/news/security/lastpass-free-to-force-users-to-choose-between-mobile-desktop/