Yes, with Tab you can have multiple users on one account. This means that your colleagues and staff can all use Tab from their own mobile phone/tablet.
You can also decide the level of access that you would like your users to have:
Manager accounts: full access
Staff accounts: limited access - can take payments, but cannot see account balance and can only see recent transactions
To add a new user, select the 'Need Help?' button on your Tab account dashboard.