Apps you must have on your Android phone

There is a list of some apps that you must have on your Android phones for, awesome sound quality, beautiful personalization, good productivity tools, great web experience, exciting games, good file management, useful utilities, data security and social networking.

Audio:

DSP manager 
Saavn Music 
SoundHound 

Web browsers:

Boat Browser 
Google Chrome to Phone 

Business Tools:

Quickoffice Pro (Office & PDF)(paid) 

Communication:

Skype 

File Manager:

ES File Explorer 
File Manager 
FX File Explorer (Beta) 
X-plore file manager 

Fun & games:

Angry Birds 
Angry Birds Space 
Ants in my pants 
Ants in my pants 
Cut the Rope(paid) 
Cut the Rope:Experiments 
Doodle Jump 
Fruit Ninja Free 
The Moron TestSection 1 Section2 
nexGTv 
Super Stickman Golf 

Home Launchers:

GO Launcher 
ADW Launcher 

Music Players:

MixZing Media Player 
N7Player 
Playerpro Music Player 
Poweramp Music Player (Trial)
QQPlayer 
Sensor music player 
TTPod 

News:

NDTV 


Personalization:

Nexus Revamped Live Wallpaper 
Retro Clock Widget 
WidgetLocker Lockscreen(paid) 
wp clock light
Zedge Ringtones & Wallpapers

Productivity:

Adobe Reader 
AK Notepad 
Evernote 
SwipePad:Hyperspace Jump 

Security:

App Protector Pro [App Lock] 
Antivirus 
Gallery Lock Lite(photo/video) 

Social:

Facebook for Android 
imo instant messenger
Twitter 

Tools & utilities:

920 Text Editor 
AdAway 
AirDroid 
Android Terminal Emulator 
AnTuTu Benchmark 
Barcode Scanner 
Battery Widget 
BusyBox 
Compass 
Gesture Search 
Link2sd 
MyAppSharer 
Screen Off and Lock 
SiMi Folder Pro (Donate) 
Superuser 
Titanium backup 

Video

IP Webcam 
Skype

Video Players:

MX Video Player