They will be using Foursquare API and later on Google Maps API to let you checkin at choosen spots.
You will be able to get there MAPCoins for checkin option in the Swarm/Fouraquare APP or change them into BTC.
Their coin/app will allow people to get free MAPcoins for checkins at choosen spots - making the cryptocurrency popular this way.
On the start they will be an addon app to Swarm/Foursquare yet later we will want to join Google Maps.