2nd best Cartography app in France
Note this screenshot is not what the app looked like while I was working there in 2012.
Mappy was the best Cartography in France after Google Maps in 2012.
We were two Android developers. I worked on the itinerary, point of interests (POS). We also developed an SDK for the Mapping services. The SDK displayed tiles of photos. The endpoints were replaced by JSON to Protocol Buffers.