>I think WhatsApp has demonstrated this no? It's been a paid subscription from the start and as far as I know, the data hasn't ever really been used for marketi

>I think WhatsApp has demonstrated this no? It's been a paid subscription from the start and as far as I know, the data hasn't ever really been used for marketing or advertising. It's fully encrypted now too. No. It's been bought out by facebook Inc. in 2014. excerpt from whatsapp legal info: If you are an existing user, you can choose not to have your WhatsApp account information shared with Facebook to improve your Facebook ads and products experiences. Existing users who accept our updated Terms and Privacy Policy will have an additional 30 days to make this choice. But for new users, well tough luck ! Their encryption was criticized when it was shown that it is implemented in a way allowing whatsapp to replace the key transparently without notifying the user. Bonus excerpt from whatsapp legal info: As part of the Facebook family of companies, WhatsApp receives information from, and shares information with, this family of companies. We may use the information we receive from them, and they may use the information we share with them, to help operate, provide, improve, understand, customize, support, and market our Services and their offerings. (...) Facebook and the other companies in the Facebook family also may use information from us to improve your experiences within their services such as making product suggestions (for example, of friends or connections, or of interesting content) and showing relevant offers and ads.