The Smartphone application named ‘Smart Expense Tracker App’ is an android based easy to use expenditure tracking tool for people. This application enables consumers to spend and record their expenditure on different items and cost it for daily use such as food, transport, and bills among others. Another feature is the simplicity of the manipulate panel, where a user can see his expenses in a few buttons and promptly define which button is costly. Some of the features include; ability to set budget limit, daily, weekly and monthly spending report, and bills reminder. Other features include budgeting goals and tracking of the same. The app promotes data security by using passwords or secure bio recognition as a means of entering the application. This project is perfect for students and developers who want to improve their level of Android application development. It provides practical experience in applying the concepts which include databases, user interfaces and UX, and notifications. Construct this project to develop an effective means to managing low scale operational funds.