$40 for the lowest priced laser target. The laser round was $34. The phone app (itarget pro) displayed above is free. I'm not sure just how accurate it is but I think it's close.
The $40 target gets decent reviews but the big knock on it is the small bullseye that you need to hit to activate it. There's an expensive target by laserlyte $175-$192 but I figure I can buy and reload a lot of rounds for that much.
Here's the light up laser target
https://www.amazon.com/CheapShot-Tactical-Training-Target/dp/B00OMCTX96/ref=sr_1_6?crid=Y6WXF5PC0T2K&dchild=1&keywords=laser+target+practice+shooting&qid=1596369328&sprefix=laser+target%2Caps%2C173&sr=8-6