If you were to go search the Google Play Store for the keywords “financial calculator”, you’d find about a zillion apps, all of which are actually pretty good – if you could only ignore the annoying pop-up ads that come with them. The ones without ads are pretty darn expensive. For example: The powerONE Financial Calculator that I paid almost $5 for. Great app with a lot of different calculators for Finance and Personal Budgeting. The good thing about powerONE is that its library of calculator modules is always growing. So if you don’t find what you’re looking for in the app, you can just go to their website and download the appropriate module. It’s pretty awesome. But, to some people, $5 is a lot of money to spend on a single app. For those, I give you the “Financial Calculators by Bishinews”.