Yandex Metrica and Google Analytics. Which of them to believe?

Question

Search Engine Optimization

Yandex Metrica and Google Analytics. Which of them to believe?
4 August visitors unique YM - 123, GA - 148
5 August visitors unique YM - 81, GA - 101
Sometimes the numbers are the same

Answer 1

After analyzing all the site data, especially the server logs, the choice was made in favor of GA, since YM is now unable to properly count users from Ukraine, but sadly...

Answer 2

The difference in indicators is constantly observed, most often due to the fact that the code of one of the counters does not have time to load.
There are also glitches for absolutely incomprehensible reasons, and the jamb on the part of the analyst, while the metrics are closer to the server logs.
The most accurate, of course, is to attach the display of the server log to the admin panel, or to the mail, for example, to generate daily reports.
If it is not possible to contact the server, then
look at which of the scripts you have is higher on the page, if it is analytics, then most likely the metric does not have time to load and because of this there is a difference in indicators. If the metric is higher, then it’s more likely an analytics glitch and here you already need to understand more closely, but from experience, most often the metric shows more accurate data.

Answer 3

believe both
reduce the degree of pathos to a minimum

Answer 4

Trust the server log.

Answer 5

Believe the log of your server and use the ratio indicator:
Where the average number of users is obtained based on the arithmetic average from all analytics systems.
Only this will show you real statistics on the work of your resource.