WhatsDog

Monitor your contacts' WhatsApp status

Whats Web

Backup all your files received by WhatsApp

Yansa

Messenger app tracker

Whats Tracker

Check who's viewed your WhatsApp profile

Whats Tracker: Who Viewed My Profile?

App to spy on who visits your WhatsApp profile

WhatsApp Spy

Spy on your WhatsApp contacts to know when they've been online

WT Hub

Set of additional tools for WhatsApp

WhatsBot

Schedule automatic replies with this WhatsApp bot

WaStat

How much time do you spend hooked up to WhatsApp?

WaRadar

The app for discovering if your WhatsApp contacts are online

GBStickers - Stickers for GBWhatsApp

Exclusive pack of stickers for GBWhatsApp

Status Saver

Download the statuses of your favoriate chat and messaging app

WAPunch

Add new features to WhatsApp

Whats Dual

Sync one of more WhatsApp accounts on one or more devices

Labalabi for WhatsApp

Send bulk messages on WhatsApp

Tools for WhatsApp

A toolbox with resources to enhance WhatsApp

Babbel

Learn languages with your mobile phone in an entertaining way

Pleco

A great resource for students of Chinese

HelloTalk

Practice languages with native speakers

Duolingo ABC

An English course for kids

LOLA SPEAK

Learn English by talking

HiNative

Learn languages with the help of native speakers

Du Chinese

A pocket-sized tool for learning and translating Mandarin Chinese

Duolingo

An app to learn languages, maths, and music with your cell phone

Lingokids Chinese for Kids

Learn Chinese from your smartphone

DW Learn German

Free German course adapted to all levels

Rosetta Stone

App for learning a range of languages

busuu

Interactive exercises and quizzes to learn many languages

Mondly

Alternative to Duolingo learn languages

Memrise

Learn languages with a revolutionary method

Tandem

Learn to speak other languages by means of conversation exchanges