Doubling Time Calculator vs Kitty Clock

This calculator lets you calculate how long it will take an amount to double given a constant growth rate.

This is a digital and analog clock app with cute kitten pictures. You can choose from 20 different kitten pictures. You can move the time text, analog clock, and kitten with your finger. Analog clock and kitten can be zoomed in and out with two fingers. Seconds can also be displayed. The year, month, day of the week, a.m./p.m., and seconds characters can be erased by touching them. Touch the time text to switch to setting mode. When in setting mode, touch to change the year, month, and date to various formats. You can also switch between 12-hour and 24-hour displays. Screen rotation in portrait and landscape mode is also supported. By pressing buttons such as "2X" and "3X," the font size can be adjusted in steps. Background color can be selected from 10 different colors. The time signal can be set to one of 78 different tones.