When comparing Maverick Pro vs Avenza Maps, the Slant community recommends Avenza Maps for most people. In the question“What are the best Android offline map apps for outdoors/hiking?” Avenza Maps is ranked 7th while Maverick Pro is ranked 8th. The most important reason people chose Avenza Maps is:
Supports official maps published by park services, etc, which often have more details than any other map available.
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Pros
Pro Save placemarks
Can save placemarks of different types under different lists and hide or show each list. Can be exported to KML files for use in Google Earth, etc.
Pro Records tracks
Records a track of where you've been and shows it on the map. You can hover over the track to see distance and time at each point. Tracks can be exported for import into other software.
Pro Many map types supported
OSM, MapQuest, satellite images, Hike & Bike, etc.
Pro Can use Google Maps
Officially removed at request of Google, but can still be used by manually editing the map sources files.
Pro Offline maps
Offline maps using "folders of PNG files" or sqlite database.
Pro Very detailed official local maps
Supports official maps published by park services, etc, which often have more details than any other map available.
Pro Save placemarks
Pro Records GPS tracks
Cons
Con No longer actively developed
Last updated 2017-02, reviews on Google Play show developer no longer responds to contacts and bugs are increasing as new phones become incompatible with its features.
Con No navigation
This app only displays map images. It has no concept of road paths, etc. and therefore is incapable of navigating them. It can show a target location with a straight line leading to it, though, and you could conceivably load a track into it to follow, but you'd have to generate the track elsewhere.
Con No support for vector maps
Raster maps are necessary for satellite imagery, etc. but take up a lot more space than vector maps.
Con Default map format is unwieldy
Saving thousands of small PNG files is wasteful of SD storage (slack space) and makes it very slow to migrate from one phone to another or backup phone, etc.
Con Cannot use SD card
Even though the maps are free of charge and some of them are official park maps without copyright issues, the app still refuses to store them on the SD card, so the map storage tends to take up far more internal flash memory than any other app.
Con Map search is awful
Searching for map files is very frustrating as the map search only shows the center point of each map as a pin, so you can't see whether the map includes a point you're interested in, and since there are usually many historical maps of the same location, they produce many pins appearing on top of each other. You have to download each one and open it in order to see what it will look like, rather than previewing them in the live display. Good overview maps will appear as pins in random locations, while there will be tons of topo map tiles everywhere else
Con Only shows one map at a time
It supports USGS topo maps, for instance, but if you walk off the edge of one, you have to manually load the adjacent map, which is a hassle. It would be nice if, like other apps, you could select "USGS topo" as the map source, and it would automatically show whichever specific map your location is currently near the middle of (since the USGS maps have margins and legends, etc.)
Con Only supports local maps
You need to plan ahead and download a map for each park or region you're going to visit before you go offline.