What Android Application is a must in your device?

License: Free for the basic version. $6.10 for the PRO version.

A application that backup all your file setting and applications. (Requires Root permission)

Pro version allows you to backup to Dropbox, so you do not have to worried if you lost your phone or having a corrupted memory card.

Whatsapp Messenger

License: Free for the 1st Year. ($1.99/year after)

Able to send messages with attachments such as photos, videos, files map location and contacts using you phone’s data plan. Supports:Android, Blackberry, iPhone, and Nokia phones.

iSyncr for PC

iSyncr WiFi Add-On

Switched from a iphone to a Android phone? No worries, download iSyncr for PC and sync your itunes music library to your Android phone. In addition, iSyncr has a add on to allow you to sync your phone via wireless with a need to plug in your phone for syncing of data.

Note: This app will not remove copy protection from your music but will alert you to which songs/videos will not play on your device.

Facebook for Android (Free)

Share and stay connected with your friends with the Facebook for Android app. Facebook for Android makes it easy to stay connected and share with friends. Share status updates from your home screen, chat with your friends, check out your News Feed, review your upcoming Events, look at your friends’ walls and user info, check in to Places to get Deals, upload Photos, share links, check your Messages, and watch videos.

License: Free

Swiftkey

Swiftkey trial version.

SwiftKey Keyboard uses AI technology to make typing smart, fast and personal. It learns from how you type and use the information to make your typing easier. Try out the trial version for 31 days. You will not regret it.

License: $1.99 Promotion Price

QuickPic (Free)

This application allows you to quickly preview your photos. This is one of the fastest image previewers.

Crop,share your photos easily.

Hide your photos (but there’s no password function)

EverNote (Free)

A notepad similar app, that syncs the data on the cloud on the go. It allows you to take notes, capture photos, create to-do lists, record voice reminders–and makes these notes completely searchable.

MP3 Music Downloader (Free)

Download songs by Top Song listing,

iTunes, Billboard, UK Chart, Popular Bands, Top Songs By category and Top Songs by year. This app is better than Pandora Radio.

Document Scanner (Paid)

Don’t have a scanner at home? This app can make use of a taken picture to be converted to a Black/White or Grey-Scale

Email/upload to GDocs/Dropbox/Evernote to share/store. There’s a full 7 day trial available here

SMS

SMS Backup and Restore (Free)

A simple App to Backup and Restore SMS Messages.

* Automatic Scheduled Backups.
* View Backup Contents on the phone.
* Option to backup selected conversations only.
* Backups are created in XML Format on the SD Card. The XML can then be converted to other formats and can also be viewed on a computer. Check the FAQs for all the information.
* Send Backup file by Email.
* Internet permission for Ads.
* MMS not supported yet.
* NOTE: There is a known problem with some firmware versions of the Droid X and Droid 2 phones that the restored messages do not get the correct time stamps.

This App needs the following permissions to work:
* Storage – modify/delete SD card contents (android.permission.WRITE_EXTERNAL_STORAGE): To create the xml file on the SD card.
* Your messages – edit SMS or MMS, read SMS or MMS (android.permission.READ_SMS, android.permission.WRITE_SMS): Needed to read SMS during backups and write them during restore.
* Your personal information – read contact data (android.permission.READ_CONTACTS): To display and store the contact names in the backup file.
* Network communication – full Internet access (android.permission.INTERNET): For displaying Ads.
* System tools – prevent phone from sleeping (android.permission.WAKE_LOCK): To prevent the phone from going to sleep/suspended state while a backup or restore operation is in progress.
* Hardware controls – control vibrator (android.permission.VIBRATE): To vibrate the phone when the backup or restore operation is completed.

ShowNearby (Free)