A Big Calculator with distinc and legible buttons is considered as an essential tool in each shop.

It seems that, giving as a gift to family elders who need to have such a device could be a good step for their comfort.

This application provides an environment that the necessary accounts are done as well.

The advantages of using this application are mentioned as follows:

- Large fonts and buttons

- Automatic embedding Braces to the aim of easier calculations.

- Suitable for Hyperopia

- suitable for middle-aged to old people.