1. Personal Info
You collect, store, or share personal data like emails, names or payment info.
2. Third Party Services
3. It’s the Law
Pretty much most developed countries and every state requires you to have privacy policies.
You risk being sued without one. Delta Airlines, Snap Chat and Google have all faced lawsuits over their mobile app’s privacy policies.
Even if you think you’re not collecting sensitive personal data, using a third party service to collect data, displaying ads and using analytics still means you’re collecting personal info and the user has a right to be informed.
8. Losing Customers
You don’t want to lose customers. People are concerned about how their data is collected and used. If you’re not up front with them, you could lose paying customers and find your revenue decrease.