Descriptions : It is an online and offline map viewer. With this app you can use different map formats such as GeoPDF from the USGS Store, GeoTIFF maps, .ozf2, .img Garmin (vectorial, not fully supported), .mbtiles and others.
Features :
+ Support for KML KMZ and GPX formats.
+ Share your position with your friends, view your friends' position on your device.
+ Download online maps for offline use.
+ Text to speech support.
+ Profiles; Save your settings on your SD card.
+ Statistics with graphics.
+ Create / save wayponits, attach photo / audio / video extensions.
+ Custom waypoint types with your symbols.
+ Basic support for geocaching.
Required Android Versions : Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]