These interest calculator app offers comprehensive functions. With this app you can calculable different constellations.
You can, for example:
Description: a fixed sum is the applied, either with or without amount.
Description: an amount is saved up the monthly, either with or without monthly deposit.
Description: the duration is selectable as either years or months.
Description: the percent (interest) are also selectable per month or per year.
Description: You can enable or disable this option at any calculation.
You can combine all of these choices with each other and adapt to your situation. Interest Calculator was designed simply to keep it as clear as possible.