Smartphone indoor positioning platform for visitors wayfinding and workforces tracking and monitoring. The SDK for Android & iOS estimates location inside buildings with high precision without using dedicated hardware. Its core technology combines pre-existing environmental information (magnetic fields, Bluetooth, WIFI) with inertial information from smartphones (gyroscope accelerometer, compass). Situm SDK is also the most feature-rich solution: works offline, inside and outside the pocket, has a low battery consumption and can automatically detect the floor level. Situm technology is being used for wayfinding and tracking solutions by top companies in telco, security, healthcare, facility management, travel or industry 4.0 wolrdwide.