Yes. You can create multiple users provided you are in "Lake", "Sea" or "Ocean" plan. Please note, each plan may have capping on number of users you can create, check plan details for more information.
The users you create will have access to the modules you assign. Example: You may choose to assign just the sales module to one of your employee and may assign purchases module to other and you may make an employee supervisor who will have access to all, including data of other employees. Basically, you are in complete control of what you want your employee to have access to.
You can also restrict access of users by IP Address. Example: If you wish your users access data only from the workplace, you can restrict the access of the users from specific IP address that corresponds to your workplace.
You can also control edit and delete rights of users. You can choose to disallow a particular user from editing data, the user has access to. Similarly, you can manage the delete rights as well.
After your subscription expires you will not have access to your data. That said, you can always download your data before your subscription ends in case you do not wish to continue.
We always ask our users to first try the product thoroughly before buying. There is a free trial as well as free for ever plan available, please make sure you understand the product before making the purchase. Unfortunately we do not provide refunds.