App Store Optimization Manager to increase organic growth

We're looking to run ad campaign for Xubba - a talent live streaming platform. We require someone responsible to develop ASO strategies that will help us to increase the app's visibility in the play store as well as improve its ability to convert the visitors to installs and users.
Kindly download this app and let us know the time and cost required to run this ad campaign. Do reach out to us on our mail id.