Piet Jonas

Plot graphs of functions. Enter your formula and the range you want to plot.Features:- By separating the formulas with semicolons you can draw more th …

Calculates the arithmetic mean, the geometric mean and the harmonic mean as well as the standard deviation and the confidence interval of a set of num …

This application lets you quickly chart data series just by entering the numbers (separated by comma or space). Features:- multiple data series and ch …

World Clockr gives everybody his own collection of digital world clocks. Each clock is customized to a location and time zone. This way it can show ac …

Remember, track and motivate yourself to do your daily tasks. Keep track of your New Year's resolutions like a daily walk, blog or stop smoking. Check …

Turn your iPhone into a ruler and measure the scale of any small thing.Features:- switch between imperial and metric scales- adjust the height of the …

This application helps to calculate the average velocity over a given distance. Use this to measure e.g. your walking and running speed or to calibrat …

Stay in control and monitor your daily, weekly or monthly spendings with the help of this budget tracker application. Set yourself a limit and debit a …

Countdown to the exact time of the next moon phases: full moon, new moon and first and last quarter. Features:- add moon phases to calendar- share moo …

Updated for Nascar, IndyCar and Formula 1 races 2015See the schedule and countdown to the upcoming and current Nascar, Indy car and Formula One races. …