Percentage Calculator by MES is a free Android app designed for quick and easy percentage calculations. The app is developed by Math Easy Solutions, the creators of the popular web application of the same name. The app is a handy tool for anyone who needs to perform percentage calculations on the go.

The app offers real-time formula display for each calculation, enabling users to see the formulas used to calculate percentages. Additionally, users can create multiple copies of the same calculation by clicking the plus button beside each calculation. The app is user-friendly and easy to navigate, making it a great choice for anyone looking for a simple and effective percentage calculator.

Overall, Percentage Calculator by MES is a great utility tool for anyone who needs to perform percentage calculations. However, the app could benefit from additional features such as a history of past calculations and the ability to save calculations for future reference.