Voxer

Transform your phone into a walkie-talkie

WhatsApp Aero

Aero WhatsApp, the WhatsApp MOD full of advantages

YOWhatsApp (YoWA)

A WhatsApp mod that adds new functions to the app

WhatsApp Plus

Learn how to download WhatsApp Plus for Android and its best features

FM WhatsApp

A MOD to have two WhatsApp accounts on your smartphone wth other benefits

Hangouts Dialer

All calls for free between Hangouts users

Burovoz

Legal support for your telephone calls

Talkray

Send messages and photos while you talk on the phone

Spikko

Call foreign countries without paying for international calls

WhatsApp Mix

More options to modify the graphical aspect of WhatsApp

Presto

Chat in the US and Canada

Nubefone

Make affordable calls without wasting your data

JTWhatsApp

JiMODs' WhatsApp+, a great MOD for WhatsApp

Popcorn Buzz

Free calls to talk to up to 200 users at a time

WhatsApp Transparent

WhatsApp MOD that makes its interface transparent

GBWhatsApp

The MOD to have two WhatsApp accounts on your smartphone at the same time

Real Piano

Play the piano on your Android

Chordify

Tool to instantly learn the chords of any song

Simply Piano

Lean to play the piano with this app

Yousician

Learn to sing and play several instruments

Songsterr

Learn to play thousands of songs on your guitar

Real Guitar Free

An application to learn how to play the guitar

Chord AI

Get the chords of any song

Perfect Piano

Learn to play the piano on your mobile

flowkey

Learn to play the piano with a virtual teacher

Ultimate Guitar

Discover thousands of chords for playing the guitar

BACKTRACKIT

An application to help you improve your musician skills

MuseScore

Millions of sheet music and lessons for all musical instruments

Beat Maker Pro

A rhythm pad for creating melodies and learning how to play

Jamendo Music

Platform for online music under a Creative Commons license

Walk Band

Play several instruments in the same app