Yes. You can connect multiple devices using one account. The # of devices is depended on the plan you purchased. These are the details:

• Doesn't matter which platform you signed up the account from, e.g. you signed up from android app, you can use the same account to login to iOS, macOS, or Windows app.
• Depends on the plan you bought, each plan supports different # of devices. One account can support unlimited devices in theory.
• If the # of connected devices is over limit, you will be prompted to unbind the other devices upon sign in.
• Each device can only register up to two accounts, regardless it is a computer or a phone.