The Shuttercount app is excellent and very accurate. I paid next to nothing for mine and it appears as if the same one is now free to download although there is a "Pro" version which you pay for. It kept a very accurate count of the last two DSLR camera bodies I had and was very useful to aid a sale for one of them.
I have just plugged in my R5 and to my slight horror I saw that the camera has taken 11,000 actuations but that includes electronic. Now as I seem to have hardly taken any shots at all I now wonder what actuations it includes? If it includes video electronic then yes, I can see why it soon mounts up.
To be perfectly honest though in my opinion shutter count is totally over rated as a sole means of evaluating the camera's worth. However, a high count will reduce the value if and when you resell it and probably by more than the cost of replacing the shutter which isn't that expensive if truth be known. I have never actually heard of a camera having shutter failure...there must be some of course.....but it's like manufacturers warranties against defaults. I have never needed to claim on any of the 8 Canon bodies I have owned. Only the 1DX2 needed a minor repair to the top wheel which wasn't very expensive either and that was after 162,000 actuations .