Weekend Open Forum: What are your essential mobile apps?

Apps I have downloaded and use fairly frequently include:

Google Maps
Speedtest
Kingston Office
Wifi Analyzer
Metric Conversion
PIXMA Print (For printing to new Canon printer)
Opera Mobile
GO Keyboard
Google Sky Map
MX Player

I also use some of the stock apps on a regular basis such as:

Calculator
Internet
FM Radio
Task Manager
Camera
Music
Gallery
Calendar
Flashlight
Weather

There are probably better alternatives to the stock options but I have not yet got around to investigating them. Any suggestions would be welcomed.
 
TextSecure
Stock browser
Endomondo
Hello Expense
IntelliRing
PuzzleAlarm
Moon+ Reader
Smart Remote
Tasks Free
TuneIn Radio
Titanium Backup
Tasker
TeamViewer
 
I would say all of these are used on a daily/bi-daily basis.

aCar (for tracking all things related to our vehicles)
ES File Explorer (for moving/grabbing files on our local network)
LogMeIn (for remote access to a variety of PC's)
Evernote (for the daily honey-do list)
Pandora (enough said)
Plex (for streaming my home/local media over 4g to our devices)
CarHomeUltra (as the default dock mode program. Great user interface)
c:geo (for my fair-weather geocache fix)
Yatse (for controlling XBMC, love the resume locally feature)
Quick Remote (built in app on my LG G2) Great for the basic remote controls for audio/video devices.
Touchdown for Exchange (for work e-mail)
Moon Reader+ (for my bedtime reading)
Max Remote (a wifi based remote for the Media PC) Very useful for basic controls.
Castle Clash (a game to kill time)
 
1 MapsWithMe (offline maps)
2 SilentCamera (discreet photo taking)
3 Skype
4. Dropbox
5 Authenticator (2fa)
6 Authy (2fa)
7 KeyRing (VIP cards)
8 Spotify
 
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