Are you and your friends puzzled what you should pay back to each other? No problem, the Payback Calculator will calculate it for you! Just fill in the names and amounts and press the Calculate button and e-mail your friends.

How much money could you save each month?
Net-Income Calculator helps you to review where your money go and how much money you actual save each month.

Measure the volume of tank by the size of the tank and the dept of liquid.

Calender with Date calculation.
Easily calculate days between 2 date.

With Geometry Helper you can get help with five (for now!) geometrical shapes: triangle, circle, square, pentagon and hexagon. You will have to input one angle, the radius, the side, the area or the diagonal, and you will be given the other properties of the shape. Any comments are welcomed here or through deepspace2@gmail.com

Quickly and painlessly calculate operational parameters of any telescope and eyepiece combination.

CalcTronic is a collection of functions to electronics professionals, students and electronics enthusiasts.

Applications are made with a graphical interface that makes these calculations very friendly.

For questions and support contact the email application of the developed