Unity Code Snipet Required In C#

I Am building 2 separate APPS in Unity 3D 2019.3.7 f1. 1) I Have a parent app . APP A in that i have a button Go to APP B when i click that button first it should downloading..... and the app should be downloaded at backend. and then it should start installing in the phone automatically. and once installed it should be opened automatically. 2) Next Time When I Open APP A and click on APP B. it shouldnt download from server as the app is already installed . Point 2 i have done but the problem is that it shows separate 2 icons in my app list for APP A and APP B i dont want to show icon of APP B anywhere . Only APP A icon should be shown. I Can Go to APP B only through APP A