Unity C# Script for share Button

Hello EveryOne, I am looking for a Programmer who can provide me with a C# script for Unity . The Script will be attached to a GameObject and then When the user clicks on that gameObject [We can use raycast for detection] , The Script is supposed to share a screenshot , This script should also contain a function which when called takes the screenshot of the screen which is to be shared later . I need the script for Android and iOS compatible, Or you can make two different scripts for each of them . Please let me know your quote and some comments about how you plan to achieve this in your Proposal ,