FracCalcA is an Android app developed by Haesaka, designed to assist elementary school students in solving calculations involving fractions. The app allows users to create custom problems and check their answers instantly, making it a useful tool for practicing fraction calculations. The app also includes a feature to check answers from problem sets.

It is important to note that the app has a limit of 8 digits for numerical values. While this may not be an issue for most fraction calculations, users should keep this limitation in mind. Overall, FracCalcA is a helpful app for students struggling with fraction calculations and looking for a quick and easy way to practice.