Say what you do (yes, really).
Do what you say.
In an academic study published last year, researchers created a tool that analyzed the language used in the privacy policies of 11,430 Play Store apps. They found that 14.2% (1,618 apps) contained a privacy policy with logical contradicting statements about data collection.
Examples include privacy

“Privacy policies … have evolved from … largely factual statements to become, nowadays, either long, verbose and impenetrable legalese, or else vague and soothing PR exercises. Either approach places the burden on the individual to understand complex data practices and act rationally in her own best interests.”  says European Data Protection Supervisor Giovanni Buttarelli.

“Transparency

New innovations come hand in hand with new privacy issues. Privacy policies may seem like a last minute add-on to some app developers but they are actually an important aspect of an app. Data breaches are an imminent risk and a business’s first defense to potential problems is a privacy policy.
Continue Reading Privacy Policies Matter… Whether You Read Them Or Not