SaaS or software as a service is a complete solution which businesses use where everything is handled by the third party and payment is made to use the service thus providing complete convenience to the end user. SaaS solutions are geared for businesses who have just started out and do not have the technical know-how to achieve success in the business but could build great products or services with the help of these softwares.
Advantages of SaaS include:

• Low setup and infrastructure costs
• Accessible from anywhere
• Scalability
• Automatic and frequent updates
• Security upgradation is easier.