In search of an estimated cost required for developing a mobile application

I am running an online business for 5 years. The business deals with the garment supply to the people all around the world. However, in these years, the business did to get much recognition therefore; I am aiming to make a mobile application for better communication with the audience. Therefore, is there anyone who knows the cost to hire android app developers then kindly tell me in the comments below? Your right suggestion will help me in taking the right decision for my company. Help me in this concern.