Is there software for PC to search/monitor "forks" of salary for vacancies on "my circle", "HH" (+freelancing), etc.?

Question

Career in IT

Good day to all.
In order not to miss the profit, the employee and the employer need to constantly be aware of developments in the field of IT employment. As a result, this question arose.
We are talking mainly about remote employment , and not one-time projects and one-time payments for them.
1. Is there software for PC for searching/monitoring "forks" of salary for vacancies on "my circle", "HH", etc.?
2. Is there such software available for freelance platforms/projects?
3. It is likely that there is a centralized rating of specialists/employees by salary levels and skill levels. The only question is: where?
In advance, Thank you all for your help and information.
UPD: Similar topic but different question:Statistics on wages in IT for the first half of 2019. Reliability of summary indicators: HOW and WHAT to check?

Answer 1

2. https://freelancehunt.com/statistics/rates/currency/rub
3. https://moikrug.ru/salaries

Answer 2

No, there is no such software and it will be in demand (how much is a question). Do =)