Google Play UI language vs review language - what's happening here?
Add &amp;hl=pl to the end of the URL. 

(So it becomes https://play.google.com/store/apps/details?id=com.touchtype.swiftkey&amp;hl=pl )

This will force the Play store to change to Polish entirely, and display the Polish version of the site, not just the translation. (Works for all Google sites, and all languages) It will remain in Polish until you close the page or tab.