しろたん電卓 is a free calculator app featuring the adorable baby seal "しろたん" that blinks and smiles as you use it. With its cute voice and user-friendly interface, this app offers convenient features such as an easy-to-read memory function and the ability to undo calculations. Additionally, you can purchase additional themes to customize the design and make it even more enjoyable to use.

One of the standout features of しろたん電卓 is its ability to display the calculation history, allowing you to review and undo any mistakes. The app can handle calculations and memory storage of up to 9 digits, making it suitable for a wide range of calculations. It also provides the option to display prices with or without tax, making it useful for both personal and professional use.

Whether you're a fan of cute characters or simply looking for a functional calculator app, しろたん電卓 offers a delightful experience with its charming design and useful features.