Some people might get suspicious because of the cheap prices of software thinking that it could be incomplete or trial. But SAAS based models are  fully functional and original. This is the advantage of Software As A Service.

Why SAAS ?  Difficult to market software at huge prices due to after sales servicing cost associated with it, all big software giants are now moving to the SAAS model. The SAAS model is not only cost effective for the users but a surety of service as well because the client has option to walk out any time if the service is not 100% satisfactory.

What is SAAS ? Software As A Service is web based model in which large no of customers use common interface of an application using separate databases. Therefore, the cost of servicing is shared amongst all the customers and the provider maintains the application from one datacenter without moving from one customer to another saving time in movement and cost. The servicing is prompt without loosing time giving 100% satisfaction to the clients.