Datacenter, premium, or dedicated proxies
The premium proxies can be used on up to 3 devices at once by default. More authentication slots can be bought as an account upgrade via the dashboard.
The dedicated proxies allow up to 5 devices at once. Currently, upgrades are not available via the dashboard. If you need to use the proxies on more devices please contact the ProxyScrape support.
Residential proxies
The residential proxies can be used on unlimited devices at once since they work with username and password authentication.