Advanced Tip Calculator is a free app to make the tip calculation easy. In addition to tip splitting and rounding features that many other tip calculators have, it also has saving as history and email feature, making it a perfect app to keep track of all dinning expenses. The user interface is very simple and easy to use.

Small funny program for beverages

KitchenCalc: elegant, simple.

The recipe feeds four, and takes 1/2 teaspoon of salt, but you have ten people coming! KitchenCalc can tell you just how much to use in a few quick touches.

Tipped Off is a free, easy to use tip calculator. You can use it to figure out your tip using any percentage and split it between up to 10 people. Also, Tipped Off has a built in reference guide that will help you figure out the correct tip in a wide variety of situations, from your hair dresser to a tour guide.

Have you ever wonder how much something will cost after the discount?
This discount calculator will do it for you.

The program calculates personal biorhythms predictions for the selected date for each user, has an easy user interface, allows determine the most dangerous days in the month and makes biorhythm calculations with high accuracy.

This is a beta app which calculates and sets alarms based on sleep cycle times.

Time crawling? Clock Watching is a simple, intuitive countdown widget that lets you know exactly how much time is left of your working day, lecture, seminar, or any other event you want to track. It can also account for breaks, and calculate the time since an event e.g. breakfast.

Efirgy helps you saving energy and money

This application allows you to manage your shopping (buying) lists.

A great currency and units conversion utility！