The MHR - Reshade Injector Helper app is an application that can be used to inject the Reshade Mod into your games. This is a tool that will allow you to modify the game in such a way that it will make the game load better and more stable. You will be able to inject your own shaders, textures, and screenshots into the game. This is a useful tool that can be used by all the players. 

To install the MHR - Reshade Injector Helper app, you will need to download it from the Google Play Store. The app will work on all the devices that are supported by the Google Play Store. Once you have installed it, you will need to open the application and follow the instructions that are presented to you. It is recommended that you should have a decent knowledge of the game development process.