Take care of many types of math problems with Andrei Kulik's Calculator. This app was created by none other than the mobile application, web page, and computer program designer and developer Andrei Kulik, known for his functional final products that get the job done - and all for free. Although you will run in to multiple ads while using this calculator, the cost of viewing them to use the mobile app is unarguably a great bargain.

Unlike many calculators, you can add a set number of days to a certain date to see when that certain day in the future will be, which saves time compared to the outdated method of finger counting while marking off the days of calendars, or, even worse - counting without visual representation, all in your head.

Andrei Kulik's Calculator can switch back and forth between various date orders - month, day, year; day, month, year; and many others - to make sure you understand the answers that this mobile app spits out in the blink of a proverbial eye.

This app even saves all calculations, so you can look at a comprehensive of all calculations in the current session and since you've had the calculator.