Only one account is allowed per person and per device. Using multiple accounts will cause your accounts to suspend automatically. We do allow up to 3 accounts per household, as long as each account is associated with a different person.
Our partners may set their own restrictions when completing offers from multiple accounts in the same household. For example, if two users live in the same household, and one user completes a certain offer or survey, it may not be available to the other user.
Our partners set their own device limits, which apply per household rather than per account.