Book Report is the best way for indie authors and publishers to track their sales data.
While much of BookReport's functionality is now offered by Amazon's own KDP Reports, I still use it regularly for the wealth of information it conveys, the elegant interface, its user-friendliness, and its simplicity. Yes, both Amazon and Chrome do have a nasty tendency to disable it and ask for confirmation every now and then - but that's nothing to do with Book Report: it's just Amazon and Google trying to keep you safe. Try it, see if it works on your browser, and if it does I hope you find it as useful as I do!
Simply doesn't work with some authentication issue.
For something that they charge $ for it is difficult to understand how it can have so many times which it is down. I have had the free version and was upgraded to have to pay and had the same experiences. They have some serious bugs that need to be fixed. If that wasn't the case it would be a powerful as well useful website for authors but it growing frustration does nothing to help creativity.
Terminal Publishing
https://www.myseobots.com/
Bookching
https://productor.io
https://bookbolt.io/
https://bookedge.co
amidart
Raybek Solutions
https://tangent.rocks
https://www.scribecount.com
https://kindletrends.com
Digital RaiHan