The best solutions for determining the user's city by ip?

Question

Ruby on Rails

Hello toaster. I have never had to determine the location by ip. Recommend the most reliable and accurate solutions for determining by ip. Preferably free.
Found geoip and rubygeocoder. I would like opinions and recommendations. Thank you all in advance.

Answer 1

https://sypexgeo.net/ru/download/
There is an implementation for ruby
​​https://github.com/kolesnikovde/sypex_geo

Answer 2

https://dadata.ru/api/detect_address_by_ip/

Answer 3

https://github.com/sergey-chechaev/yandex_locator