Can SmartThings launch another app on my Android device?

Hi All

I would really appreciate a reply to this post.

I have been researching for hours and hours to get this to work.

Ranjeev I even watched your video every second over 30 minutes long, but there is no explanation of how you set up tasker.

I have paid for and downloaded sharptools and tasker, and I have been messing with the apps enabling different functions and creating different events and profiles relating to the ring app but for the life of me I cannot get the full screen ring video to open when my doorbell is pressed!

All I am asking for is a step by step instruction for sharptools and tasker.

Sharptools I have given permission for smartthings and subscribed all items and paid for the app.

Tasker I have gone to event create, plugin, sharptools, thing state, name Front door, attribute left blank, saved, then application add launch app, ring.

When I press the doorbell nothing happens

Really need some help please as I see others do too but nobody that gets this working actually wants to share the instruction on how this worked.

Thanks in advance for your help

Grant