PPI Calculator is a free Android application that allows users to calculate the Pixels Per Inch (PPI) of any device. Developed by Vaibhav Lakhera, this app is a must-have for anyone who needs to accurately determine the PPI of their device.

One of the most significant features of PPI Calculator is that it works offline, making it easy to use anywhere, anytime. Additionally, the app is open-source, which means that users can access the code and modify it to suit their needs. The app also comes with built-in resolution presets, making it easy to calculate the PPI of popular devices accurately. With PPI Calculator, users can display results with four decimal places, ensuring accuracy and precision.