# Non-Functional Requirements - **Usability:** the application must be user-friendly. Ideally, it can be picked up by anyone very quickly, intuitive and self-explanatory. - **Aesthetically Pleasing:** the application should be visually attractive giving the application personality and therefore making it likeable. There are many list applications and this requirement could help the application stand apart from the others. - **Privacy of Information:** a user should feel safe inputting any information into our app without the fear of their data being shared for any reason. - **Availability:** the application must always retrieve the data related to a specific user making the application useful at all times. - **Good Performance:** The application must be quick in returning and displaying data to the user. - **Scalable:** The application must allow the amount of lists to grow in size and if needed to a very large amount. In addition to the list count, the amount of items per list must be able to grow vastly if need be.