When comparing Mapfactor Navigator vs Avenza Maps, the Slant community recommends Mapfactor Navigator for most people. In the question“What are the best offline GPS navigation apps for Android?” Mapfactor Navigator is ranked 5th while Avenza Maps is ranked 19th. The most important reason people chose Mapfactor Navigator is:
MapFactor also provides regular map updates.
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Pros
Pro Free with OSM maps
MapFactor also provides regular map updates.
Pro Free monthly updates
Every month there are free map updates.
Pro Very in-depth adjustments in settings
You can define vehicle type, which roads you prefer to use (highway, secondary roads, local road) all with a percentage slider.
Pro Up to 3 suggested routes
This is a premium upgrade but worth the small cost. Without it Navigator always has a preference for main roads.
Pro Highly customisable
Pro Helpful lane guidance
Pro Speed and camera warning
Navigator warns you if you approach a speed camera or exceed the speed limit.
Pro Traffic information
The new 3.0 version includes also the online traffic information. It is also a premium feature but worth it.
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 Ads on application exit
As of Spring 2017, this app doesn't allow you to exit without being nagged to install other apps. If you select "No thanks", you somehow get directed to a Google search page, which is incredibly frustrating. It's acceptable to have a fairly unobtrusive ad at the bottom of a navigation map, but it's definitely a deterrent if every time you exit the app you have to go through a series of annoying screens or take the risk of making a mistake and installing something you actually don't want.
Con Nag screen to upgrade to Premium TomTom maps
Even if you click 'Don't show this anymore' you still get constantly nagged to upgrade.
Con Not very appealing grayish user interface
Con Sometimes questionable navigating routes
For example, in Slovenia, with loaded OSM data, this navigator routed to off-road trails. OsmAnd+ selected much better roads.
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.