How apps help brands in audience engagement

Every successful brand or business organization wants to stay in constant contact with their target audience and their customers so that the audience and customers don’t forget them and also so that the target audience can have a good relationship with the brand. According to some of the best app developers in California brands and business organizations are now focusing a lot more on the development of mobile apps so that they can stay in touch with their target audience and engage them on a constant basis. What other benefits do mobile apps have for brands?