A geomagnetic-based mapping app for indoors, yes, indoors, is now available for devices running the iOS mobile operating system, which means you get out your iPhone and iPad to take advantage of a new launch from IndoorAtlas. This company, with an office in Mountain View, California, originated as a spinoff from research at Finland’s Oulu University. The company promotes its patented indoor positioning technology, which uses the built-in magnetometers in smartphones to detect anomalies in the geomagnetic field, guiding users trying to navigate through indoor spaces. A key distinguishing feature about their technology is that there is no need for any additional infrastructure. The IndoorAtlas app allows for accurate positioning within six feet inside a building, without having to use any external hardware such as Bluetooth beacons or Wi-Fi connectivity.