Expresso GPS One Year iGolf Membership Gift Card Complimenting your Expresso device with an iGolf subscription you are given complete access to the world largest GPSenabled golf course database.iGolf employs a fulltime dedicated mapping and audit team to verify that all maps are updated and accurate. Thousands of golfers rely on iGolf GPS data every day ensuring that iGolf data has been verified by experienced golfers playing on courses worldwide. Enjoy access to key distances on the course helping to significantly improve scores and increase pace of play.