Android apps are mobile software designed for running on the Android operating system, which is one of the most popular platforms used in cellphones, tablets and other mobile devices. After all, there’s now an estimated 350,000 different Android apps and games on the Android Market alone to choose from, and that’s not even the only repository for programs that’ll run on Google’s mobile OS.

If you have recently bought an Android powered smartphone and looking to download some of the best Android apps, so on this page, you will find the best 25 Android applications for all your needs. We’ve taken the effort to categorize the apps and picked only those we believe to be the best ones and which will most likely be useful to you. Take a look!

1. Google Voice

Make cheap international calls with your Google number. Send free text messages. Place calls and send text messages showing your Google number. Listen to voicemail and read transcripts. Currently only available in the US.

Google Voice

2. Poweramp Full Version Unlocker

This application unlocks Poweramp (Trial), powerful music player for Android. Please install Poweramp Music Player (Trial) application first. Unlocker removes the trial period limitation. Any version of Poweramp can be unlocked (v1.x and v2.x).

Poweramp Full Version Unlocker

3. Root Explorer (File Manager)

Root Explorer is the ultimate file manager for root users. Access the whole of android’s file system (including the elusive data folder!).

Root Explorer (File Manager)

4. Camera ZOOM FX

I love this app. it is so fun to take picture it feel like a profession camera. On the sensation is a decent app and it is nice to offer non compressed shots.

Camera ZOOM FX

5. Paper Camera

See the world through a novel, original, stylish and captivating lens. Real time cartoon and painting effects displayed on your camera feed! See the world through a new, original, stylish and captivating lens, have a wonder in your own home and discover how cool is now your world in cartoon!

Paper Camera

6. SoundHound

Unlimited music recognition! With the world’s fastest music recognition and exclusive singing search, SoundHound is instant music search and discovery.

SoundHound

7. ADWLauncher EX

Is an normal android application that will run when you press your android phone’s HOME key. It’s usually what people know as the “android desktop”.

ADWLauncher EX

8. TuneIn Radio Pro

TuneIn is a new way to listen to the world through live local and global radio from wherever you are. Whether you want music, sports, news or current events, TuneIn offers over 50,000 stations and 1.2 million on-demand programs for you to choose from.

TuneIn Radio Pro

9. ezPDF Reader

ezPDF Reader is the Best Selling and the Best Rated Multimedia PDF viewer, annotator, and form filler.

ezPDF Reader

10. SlideIT Keyboard

SlideIT keyboard is an excellent tool for entering text, replacing your touchscreen keyboard. SlideIT keyboard enables users to dramatically improve writing speed with practically no learning curve.

SlideIT Keyboard

11. Tapatalk Forum App

The Best Selling Forum App! Tapatalk allows you to access forums on-the-go! Winner of 2011 HSBC Youth Business Award! Welcome our 1,000,000th Tapatalk user!

Tapatalk Forum App

12. WidgetLocker Lockscreen

WidgetLocker is a lock screen replacement that puts you in control of the look, feel and layout of your lock screen.

WidgetLocker Lockscreen

13. Talking Tom Cat 2

Tom is back with an all new adventure! Tom is your cat that responds to your touch and repeats everything you say in a funny voice.

Talking Tom Cat 2

14. SetCPU for Root Users

SetCPU is a tool for changing the CPU settings (capable of overclock and underclock) on a rooted Motorola Droid, Nexus One, G1, G2, Samsung Galaxy S, myTouch 4G, Motorola Xoom, or one of many other devices to improve performance or save battery.

SetCPU for Root Users

15. JuiceDefender Ultimate

For battery life just too good to be true, JuiceDefender Ultimate employs a ton of advanced, fully customizable and really effective power saving features.

JuiceDefender Ultimate

16. MyBackup Pro

Supporting the most content and the most devices. MyBackup Pro is the easiest backup for Android. Supporting the most content, and the most Android devices.

MyBackup Pro

17. PicSay Pro – Photo Editor

Award winning photo editor with all the tools you need to spice up your pictures. Spice up the pictures on your phone with this award winning photo editor!

PicSay Pro - Photo Editor

18. WeatherBug Elite

Access the largest network of professional weather stations in North America and thousands of locations around the world! WeatherBug Elite brings the most accurate, reliable and timely weather information directly to your phone.

WeatherBug Elite

19. Anti-Virus Pro

AVG Mobilation™ Antivirus Pro is a mobile security solution that not only helps protect your phone from viruses, malware, spyware & online exploitation in real-time, but also offers a suite of features to help keep your privacy, personal data and online identity safe.

Anti-Virus Pro

20. Star Chart

Now you can have a virtual star chart in your pocket! Look through the eyes of your Android device* to see a virtual window into the whole visible universe.

Star Chart

21. Talking Tom & Ben News

Talking Tom & Ben have become famous TV news personalities! Talk to them and they will repeat what you say in turns. Create & record funny conversations between them.

Talking Tom & Ben News

22. PlayerPro Music Player

The ultimate music player for Android. PlayerPro Music Player is an advanced music and video player for Android 2.x devices.

PlayerPro Music Player

23. Business Calendar

Calendar-Application with scroll- and zoomable multi-day view and much more. Business Calendar is a complete calendar application that is synchronising with your Google calendars!

Business Calendar

24. FlightTrack

The best flight tracking app out there! Now optimized for your Honeycomb tablets, too! Track flights with beautiful, zoomable maps or get real-time departure info, delays and gate numbers at a glance.

FlightTrack

25. Sleep as Android Unlock

Unlocks the “Sleep as Android” application – the alarm clock with sleep cycle tracker. Install this “Unlock” and enjoy all features without any limitations every day: sleep tracking, graph history, sharing graphs on FaceBook, nature alarms (birds, sea, storm…), fall in sleep with music (volume down when asleep), captcha.

Sleep as Android Unlock

Made it to the end? What did you think? Are there any apps you think are missing from our Best Android apps of all time list? Tell us what they are, in the comments below!