> Millions of smartphone users confess their most intimate secrets to apps, including when they want to work on their belly fat or the price of the house they c

> Millions of smartphone users confess their most intimate secrets to apps, including when they want to work on their belly fat or the price of the house they checked out last weekend. The price of a publicly listed property for sale is my most intimate secret? Even if I were to buy it, the sale price would be a matter of public record that anyone could look up.