This document describes a project to develop a 24-hour mobile tracking system using Android. The existing systems have limited call log storage. The proposed system provides unlimited storage of call logs and messages in a database. It will allow users to authenticate and retrieve stored call logs and messages for any date. The system will have modules for user authentication, storing details in the database, and supporting devices. Diagrams show use cases, sequences, and activities like selecting dates and displaying message/call contents.