What mapping software did you use? Just curious, because when I lived in Bangalore, India, I used to use one of the many android apps that record a gpx file, wh

What mapping software did you use? Just curious, because when I lived in Bangalore, India, I used to use one of the many android apps that record a gpx file, whenever went cycling. And, I used this mostly when I cycled in parts of the city that weren't mapped well on OSM. Then, all I had to do was upload the gpx files and if I found time I used to annotate street names, landmarks etc. And, nothing in this process seemed resource intensive to be slow.