Offline Map:
http://maps.me
https://osmand.net
Street
https://www.mapillary.com/
GPS:
GPX Logger
GPS Logger
GPS Essentials
OSM Data Collection
OSM Tracker
OSM Data Collection
OSM Tracker
Mapzen
Vespuscci
Mapswipe
GeoMaptool (customized from ODK, from Sirajganj)
Worldwide Disaster Mapping
http://tasks.hotosm.org
Little Apps
Little Apps
Visualize:
CartoDB
Compare:
http://osmfight.neis-one.org/
3D
http://demo.f4map.com/
OpenSourceGIS
QGis
Others:
http://openstreetview.org/
http://2016.stateofthemap.org/
http://www.omkserver.com/
http://wiki.osmfoundation.org/w/index.php?title=Licence/Why_would_I_want_my_contributions_to_be_public_domain&redirect=no
OpenStreetMap:
https://www.openstreetmap.org
http://osmlab.github.io/show-me-the-way/
Photo:
http://wiki.openstreetmap.org/wiki/Photo_mapping
JOSM:
https://josm.openstreetmap.de/
I was having connectivity issues while downloading map in JOSM
launching JAR from command line showed more details about what was going on
tried with both 10768 and the latest version
Problems were:
connection timed out,
unknownhost
Following things did not help
Setting proxy
Replace https with http
replacing domain names with IP
Finally, organizers found out that running following line in the command prompt solves the problem
setx _JAVA_OPTIONS -Djava.net.preferIPv4Stack=true