Stroke Gained app/websites

Peter Arnott recommends https://www.golfstatscoach.com

It looks great. But I still haven’t found a way to keep notes on the course that is convenient.

I really like Shotscope you could get an X3 for not a bad price now. They do all the stats and tracking for just the cost of the watch.

I would recommended - https://www.pinpoint.golf/
You can quickly improve your golf game by using powerful strokes gained analysis and effortless tracking.

I use Clippd. My teacher/coach told me about this a few months ago. It’s centered around strokes gained (all the apps are now). What’s cool about clippd is he has an account and can few rounds and practice sessions and make comments on my posts. It breaks down your game in to 4 areas. Off the tee, approach, short game and putting. It’s great for the off season when you break down your game and decide where you need to focus on. It drills down into specifics and even recommends practice games.