Energy-Saving Phone Apps (IMAGE) Purdue University Caption A new tool developed by Purdue researchers would automatically identify and expose ways to make app features more energy-efficient, saving battery life. Credit Purdue University image/Kayla Wiles Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.