Subscript numeric keypad for Android

This is a soft keyboard which can input "subscript numeral" which can be used when expressing how many atoms are in the molecule in chemical formula, chemical reaction formula etc in the field of science.

It is also used when writing the number of vitamin B.

Please enter ordinary numbers and alphabets with other keyboards.

Please be aware that it may not be saved correctly depending on the character code of the text file to be entered.

If it is UTF-8 of the standard character code of Android OS it can be saved correctly.

There is a possibility of garbled characters when saving with the standard character code of Windows PC.