To help users to maintain their privacy Facebook introduced Anonymous login feature. This feature will help users to not share their personal details to 3rd Party applications like Candy Crush.
Earlier users playing Candy Crush have to provide their personal details to them to use it. There was no provision to select which details to provide and which not to provide like that.
The new Anonymous feature will be a big solution for all that type of limitations.
Facebook introduced this feature in last year’s Developer’s Meet and now after one year of research and development it finally implemented.