10 apps I would personally recommend
These are apps that I use regularly or have tried and found to be helpful and/or enjoyable to use for Android devices.
1) Themer Beta- http://goo.gl/c2qKvW
Have you ever wanted to change up the look and feel of your device without having to tweak a lot of settings? Check this out.
2) PVStar+ Youtube Music Player: http://goo.gl/ecZAI
This app allows you to play Youtube videos, Dailymotion videos, and others as music that can be used either online or offline on your device.
3) Camcard Free- http://goo.gl/F3C5X
This app will auto-crop and import business cards of all types as well as the contact information on the cards, as well as will allow you to sort those cards/contacts into lists. Much nicer than having a ton of business cards filling up your wallet or purse.
4) Car HUD- http://goo.gl/L4GbdZ
This app is great for those that drive at night. If you start this app while driving and place your phone on your dashboard, it will reflect on your windshield with your speed and will keep you from having to look down at your speedometer and be able to keep your eyes on the road. I have used it many times and it is VERY helpful for long commutes at night.
5) Clean Master- http://goo.gl/VB33j
This app will help you to find where you have wasted storage space that can be reclaimed easily, as well as junk files and apps that may just be sitting on your device taking up space. Also, this app will let you put a control bar on your taskbar that will let you perform other functions like flashlight control and more.
6) Google Opinion Rewards- http://goo.gl/CLmCNH
This app will pay you in Google Play credits time to time for completing short surveys. No catch, no hassle, just simple, short surveys asking you about products you use. It doesn't pay a lot but helps out with time to time purchases and extra credits to spend.
7) Timely Alarm Clock- http://goo.gl/t6YQ7M
This app gives you a fully-customizable alarm clock with many features that Google didn't include such as being able to sync alarms across devices and more. Definitely worth downloading if you ever use your phone/tablet as an alarm clock.
8) Truecaller Caller ID & Block- http://goo.gl/ljEHn
This app will show you the name of the person calling and will check it on an online database for you to see if the party calling is a spam or junk phone number calling to harass you or bother you with unwanted sales calls.
9) Youmail Visual Voicemail- http://goo.gl/yXxhU
If you have Visual Voicemail included on your device or on your phone plan you may not need this but if you don't and would like to be able to access your voicemails without having to call into your voicemail number each time, this app works great for allowing you to have them ready on your device after receiving.
10) ES File Explorer- http://goo.gl/jQBhs
The best file manager for Android that lets you access files on your home network, play external audio/video and other files on an SD card or usb card, as well as many, many other features.