MAPS.ME
Maps.me is an Android, iOS, and BlackBerry software that delivers offline maps based on OpenStreetMap data. It was previously known as MapsWithMe. It was bought by Mail.Ru Group in November 2014 and became part of its My.com brand. The app was open-sourced in September 2015, and a free and open-source software version was also made available on F-droid until the application was sold to the payment processor Daegu Limited, part of Parity.com, which changed the application user interface and content, prompting the free software community to develop an ad and tracker free fork in response.
It includes offline maps, turn-by-turn directions, and maps that are updated using OpenStreetMap. There is also location bookmarking, offline searching, traffic statistics (where available), and global support. It's as close to a Google Maps rival as you can get. Most individuals should be able to use it most of the time. Some people have noticed a few difficulties here and there, but nothing too concerning. The software is 100% free and does not require any in-app purchases. There are some advertisements, but they aren't distracting.
Detailed information:
Price: Free
Best for: Simplicity
Download: https://play.google.com/store/apps/details?id=com.mapswithme.maps.pro&hl=en
Website: https://maps.me/