A system, apparatus and method utilize a micro electronic device implanted in a person or group of persons, or wearable thereby, to manage a variety of activities. Such micro devices may also be embedded in, incorporated into, or otherwise attached to articles, devices, structures or things to track, manage or monitor such articles, devices, structures or things for geo-location or other tracking, monitoring or management services. The microelectronic devices may be used for geo-location services for agencies responsible for monitoring such person's whereabouts with respect to branches and agencies such judicial and law enforcement agencies. Lastly, the microelectronic devices may be implanted in or worn or carried by humans for using biometric sensors or transducers to authenticate and transmit vital signs and other health information to clinic or other facility personnel. The micro electronic devices may be communicatively connected to a mobile device and the micro electronic devices utilize features of the mobile device such as user interface services, programming services, data processing and storage services, telecommunication services, location services, sensor/transducer services, camera services, clock services, and/or temperature, weather and other services. This also enables tracking, monitoring, inventorying, and management of people and things for medical, legal, business, governmental and various other purposes.