It is the world's only indoor mapping platform that integrates with outdoor maps, and has accurate floor delineation. It runs as a web app (https://map.digitalearth.land). Intuitively understandable and aesthetically pleasing indoor maps with real measurement based floor plans can be launched with a QR code or sent via text message. As an additional feature of the app, you can query the GPS coordinates of others, including those in need of rescue, by texting the URL of a probe app. This technology overcomes the limitations of GPS remote control methods, which cannot be used on foreign smartphones such as iPhones, cannot be used on budget phones at night, and must meet strict legal requirements. Our indoor map and location sharing technology is based on a total of seven registered patents.