IzzyOnDroid

What’s Nearby? asks simple "yes" or "no" questions about a location it detects you are at. These answers are then uploaded to OpenStreetMap. This app is aimed at those who aren’t aware of OSM tagging concepts and casual mappers. Tags should not be exposed in the interface, but rather inferred from the answers to questions like "Does this location have Wifi for customers?". The idea is for the mapping to be almost frictionless, where people are mapping by being prompted that data is missing rather than consciously deciding to add data.

What’s Nearby? checks your location every 5 minutes. If it decides that you are at a new place, then it performs an Overpass query to find all the relevant locations close by. It then selects the closest of these and presents you a suggestion that you might be at that location via an android notification. If you say that you are (by selecting 'ok') it presents a series of yes or no questions. Answering each moves you on to the next and at the end the results are uploaded to OpenStreetmap.