Best Free Weather Alert and Monitoring for Android

GO Weather (5.2 MB), monitor live weather conditions and forecasts at your location or other places you selected from around the world, with a desktop widget, video or image background, alert notification and other features. No ads.

Best Free Navigation for Android

Maps (6.9 MB), an excellent mobile mapping app by Google to get directions to go from one place to another, search for any business or place to find more info, or see where your friends are right now on the map and so on.

 

Waze social GPS maps & traffic (18 MB), a voice-guided navigation app complete with live maps, turn-by-turn directions, automatic re-routing as conditions on the road change, and community generated real-time traffic and road alerts including accidents, hazards, police traps and more.

Best Free Web Search for Android

Google Search (608 KB), search the Web, as well as the applications and contacts on your device, with this official Google Search app and get search results and suggestions instantly as you type.

 

Google Goggles (3.0 MB), snap a picture and search the web for the info you want—either it's barcodes, print ads, landmarks, books and DVDs, contacts info, logos, some text to translate or even Sudoku puzzles to solve.

Best Free Bookmark Manager for Android

Pocket -formerly Read It Later (2.6 MB), ever come across something on the web you'd like to view but can't at that time on a browser? Add it to your Pocket bookmark list from your PC or mobile for viewing at your leisure. This app downloads articles or web contents (except videos) in the list to your Android device for offline viewing too.

Best Free News Reader or Feed Aggregator for Android

Flipboard (3.6 MB), flip through the news from websites, or the updates and photos on Facebook, Google+, Twitter, Instagram, etc., all in a magazine layout that's easy and fun to read. You can also customize your Flipboard with the sections you like, share articles and photos, or comment on posts.

 

Pulse News (8.3 MB), manage your news sources in tabbed pages, browse stories by sliding visual mosaics and tap one to read in full. What's more? Add stories to your Pulse.me accessible on the Web, or share them with your friends via Facebook, Twitter or email. 

 

Google Currents (6.0 MB), read your news and RSS feeds in beautiful magazine-like editions on your mobile devices with features including Pick of the Week, saved stories, your favorite blogs and feeds, and publisher editions covering news, lifestyle, business, science, technology, sports, entertainment and more.

 

World Newspapers (2.4 MB), take a few you like from a directory of thousands of local and international newspapers, magazines and websites, and add them to your favorites for reading with optimized display. You can also download webpages for offline viewing, mark Pocket (formerly Read It later), etc.

Best Free Download Helper for Android

Download All Files (438 KB), tried to download a file but greeted with the message Content not supported? This app helps you download all file types (except for streaming media) and save email attachments to your SD card.

Best Free Device Tracker for Android

Wheres My Droid (651 KB), finding your misplaced phone is made easy—use another phone to text "Where's my droid" to make your lost phone ring even if it's on silent mode, or text "GPS my droid" to know its whereabouts. Simple as that.

 

Prey Anti-Theft (3.0 MB), "Once the device has been instructed to go into missing mode, the app springs into action and does whatever you've told it to do. You can either trace your device, lock it or delete the files on it."

Best Free Email Client for Android

K-9 Mail (1.83 MB), a powerful and open-source email client for replacement of Android's default Email app, supporting standard protocols such as IMAP and POP3, with search, push email, multi-folder sync, flagging, signatures, bcc-self and more.

Best Free Private Gallery for Android

Gallery Lock (4.4 MB), manage your private photos and videos by hiding them into folders accessible only with your password or pattern lock. The app supports slideshow and other options, but stealth mode and backup are available only on the paid version.

Best Free Password Manager for Android

KeePassDroid (1.3 MB), too many passwords to remember? This app helps manage passwords easily—just remember one single master password or select the key file to unlock them. A good implementation of desktop software KeePass Password Safe or even KeePassX.

 

Keeper Password & Data Vault (4.6 MB), a simplistic app that saves all your passwords onto your mobile phone with a master password. Features include optional self-destructs after entering five wrong passwords but cloud bakcup is only available on the paid version.

Best Free Webmail for Android

Gmail (2.5 MB), a dedicated Gmail application with email pushed automatically to your phone. Supports for multiple Gmail accounts, search and access synched messages when offline and other common features.

 

GMX Mail (4.4 MB), access your GMX mails on the go using this official app optimized for your mobile device. The app also includes a Mail Collector for you to read and send emails from your multiple email accounts, such as Gmail, Hotmail, Yahoo Mail and more, all in one place.

Best Free Apps Protection for Android

APP Lock (638 KB), protect your installed apps with a number or pattern lock using this handy app, with other useful features such as locking the install and uninstall functions, incoming calls, settings, hiding the APP Lock icon and short exits without the need to unlock again.

 

Perfect App Protector - FREE (3.7 MB), lock your selected apps with a password or pattern, reduce screen brightness and control screen rotations on the apps you chose, plus stealth mode and other useful features.

 

Application Protection (328 KB), easily help protect applications and data on your device with a passcode to prevent unauthorized usage. Upon first running, press "?" to get the original code, add apps to the list then set your own unlock code.

Best Free Anti-malware for Android

TrustGo Antivirus & Mobile Security (3.8 MB), a simple yet powerful security app with awesome anti-malware capabilities, secure web browsing and a secure app advisor. Selected as the new Gizmo's Freeware Top Pick for this category, this app has low impact on your device's resources.

avast! Mobile Security (4.8 MB), a feature-rich security app includes not only a virus scanner to scan all your installed apps and SD card content against viruses, but also other useful tools such as privacy advisor, app manager, web shield, SMS and call filter and anti-theft. It also adds a firewall which works only on rooted phones.

Lookout Security & Antivirus (2.6 MB), protect your device and data easily by blocking viruses, spyware or other malware and scanning every app you installed with automatic antivirus updates, backup your contacts to the web or restore data to an existing phone, find your missing phone and more. Privacy Advisor is only available to the paid-for premium version.

VirusTotal for Android (492 KB) helps get your system and user apps in your device scanned by more than 40 antivirus vendors and flag any malicious apps. Tap a flagged app and you can view its detailed scan results from the vendors.