I used to recommend that app. But a reader sent me this information:

But I would definitely not put maps.me on any list of privacy friendly apps. Besides their privacy policy not being good and them collecting a ton of data and the app having lots of trackers, etc., the app sends plenty of data to it’s Russian owners (that company has its own privacy problems). I love maps.me and used it for years. But once I read this article and started my own network analysis of the app traffic, I won’t put it on my primary phone any longer. Have a look at these:
https://translate.googleusercontent.com/translate_p?sl=auto&tl=en&u=https://mobilsicher.de/ratgeber/navi-apps-im-check-maps-me-nicht-empfehlenswert&depth=1&rurl=translate.google.com&sp=nmt4&xid=17259,15700002,15700019,15700186,15700190,15700256,15700259,15700262,15700265,15700271,15700283&usg=ALkJrhgAAAAAXdMoLQzz0UY79EjTy1_5__H5Swg927vp

https://www.androlyzer.com/app/com.mapswithme.maps.pro/1735/e2e0167d27002392c21192a9e215ce0e480b0625

Say what you want about Google data collection, but I still trust Google more than some Russian company that has had its own privacy problems (and doesn’t play by the same rules as US companies theoretically should).

Now, if you are compiling maps.me app yourself from source (without all the gunk) and sideloading it, well that’s another story.