Mathematica

Platform for computational development

Statgraphics

Carry out statistical analyses on your data

Mathcad

Software for engineering calculations

MathType

Complete mathematical equation and formula editor

Geometry

Complete trigonometry and geometry calculations easily

GeoEnZo

Digital board to teach and learn maths

Microsoft Mathematics

Solve mathematical operations with this free tool

Gretl

Application for econometric analyses

PASW

One of the most powerful statistic solutions on the market

Derive

Powerful tool for symbolic mathematic calculations

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

Maple

Solve complex mathematical operations

WinPlot

Generate 2D and 3D graphics

Scilab

The most comprehensive tool to perform numerical calculations

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

Octave

Applied calculus software very similar to MATLAB

Viber

Windows client of the chat and video call app

PC 2 Phone

fonYou service for Windows

QuteCom

SIP softphone to speak and send free messages

ooVoo

VoIP client to chat with your contacts

iFree Skype Recorder

Comfortably record your Skype conversations

Skype Portable

The portable version of the popular VoIP client

Jitsi Meet

App for making VoIP and video calls

VoipWise

Very complete VoIP client

SkypeLogView

Find out all the data that Skype stores

Clownfish Voice Changer

Change your voice in real time

Zello

Send voice messages from your PC for free

Zoom

Workplace Video Calling App

Skype

Text messages, calls and video calls to and from phones and PCs

SoliCall

Reduce the background noise in voice conversation over the net

Tango

VoIP client for voice and video calls