People have stopped trusting and taking advertisements seriously because it's simply overwhelming. For example, many people just ignore TV commercial breaks and prefer to do their own things instead. It seems increasingly obvious that people are trying to find true information based on real evidence and not on someone's words.
It is these same opinion leaders who already have loyal audiences with whom they have built friendships. Subscribers are willing to follow their advice and trust an ad from a blogger, celebrity or an expert.
Advertising a mobile app to these subscribers is an opportunity to present a product in an organic way that won't cause rejection. On social media, information about the same brand can be presented from different angles depending on what blogger's followers will find appealing. It's best to consult with the influencers themselves about these perspectives to make the content native.
The result is not only visible engagement of the public with the product, but also an important storytelling element.