Hi, i am in the process of building a small app for a charity swim. It is a very simple app that allows the participants to enter in their training records each day, in the build up to the race day. They will be training for 12 weeks in total, and the app will allow them to enter in the following each day. 01 - DISTANCE 02 - TIME I am trying to decide if i should get the users to sign up and store their information in a database, OR if i should just allow them to use the app straight away, and then store all of their info within the app. If i didn't add the Sign Up and database feature, the app data would load quicker etc, however if the person loses their phone, they will have no way to recall the data that they built up within the app. Can anyone offer any advice on this, should i store to a database or internally? Is there any other pros / cons to either option? Thanks in advance for your help.