Who found the price monitoring service for domain registration?

Question

Domain name market

Hello.
Actually a question, someone found such service?
You need to find who is the cheapest to register, shares for registration, etc.

Answer 1

So prices seem to change very rarely. I've been paying ~4.15 for .ru since 2008.
Other zones haven't grown much either.

Answer 2

Here is an article about the domain selection service habrahabr.ru/post/237961

Answer 3

https://www.domcomp.com