GTD-Free

Full control over all pending tasks

GanttProject

Organize all the tasks belonging to any project

TickTick

Teamwork oriented task manager

Notion

Advanced task, list and note management for PC

Focus To-Do

Manage your productivity with the help of the Pomodoro technique

MetaMoJi Note Lite

Keep all your ideas and notes

Microsoft To-Do

An efficient task manager designed by Microsoft

Wunderlist

Useful and simple task manager

MeisterTask

Team-oriented task manager

Microsoft Sticky Notes

Sticky notes for your PC's desktop

Airtable

Application for the management of business projects

Evernote

Capture your ideas as notes

Glass Notepad

A notepad with transparencies

Post It Notes

Program to create virtual post-its and notes

InfraDrive Digital Diary

Complete personal diary with many tools

Trello

Organize pending tasks and ideas

Signal

Instant messaging and chat app that guarantees anonymity

QQ International

The messaging application to communicate at global level

Messenger for Desktop

Facebook Messenger on your Windows desktop

Telefuel

Alternative Telegram client focused on productivity for PCs

WhatsApp Viewer

Tool to view WhatsApp chats on PC

Windows Live Messenger

The departed Messenger by Microsoft

WeChat

The Windows version of the popular Chinese messaging app

Telegram Messenger

Telegram's desktop client for Windows

IMVU

Instant messaging and chats in 3D environments

imo

Talk to your friends from your PC

LINE

Instant messaging from your PC

WhatSender

Send multiple WhatsApp messages from your PC

Facebook Messenger

Chat with your contacts from your desktop

WA Web Plus

An extension to use WhatsApp Web with more functions

WhatsApp Messenger

The official version of WhatsApp for Windows