Duo is Google's answer to Apple's FaceTime, and the company swears that the video-calling app is totally different than Hangouts.
Though you only get a few extra useful features, WhatsApp Messenger is an excellent choice for sending free texts across platforms, even internationally.
Its streaming video quality may not be perfect, but HBO Go for Android is still a must-have for anyone who already subscribes to HBO at home.
With an interface that lets you browse headlines quickly, customize your channels and read the news offline, SmartNews is an excellent free alternative to other popular news apps.
If you use Google Hangouts or you used to use Google Talk frequently, then you should enjoy the convenience of a chat and video-calling app.
Windows 10 delivers a refined, vastly improved vision for the future of computing with an operating system that's equally at home on tablets and traditional PCs -- and it's a free upgrade for most users.
With accurate weather alerts that are specific to your exact location, Dark Sky is a must-have app for iOS users.
Manything can't match the video quality and options of some traditional Wi-Fi cameras, but there's no easier way for iOS users to experiment with DIY home security.
As far as free theft-deterrent and motion-notification systems go, Salient Eye has the lock on simplicity.
Netflix remains the top TV and movie streaming service, thanks to its ease of use, lack of commercials and original content.
Ctrl+Console's Lightroom Sorter provides iPad-based controls for organizing your photos.
For the price of one console game a year, Apple Arcade gives you a lot of quality games and a steady stream of new titles.
Piano Tiles is the perfect mix of simplicity and addictive gameplay that's easy to learn, but incredibly challenging to get high scores.
Even with the freemium model, Real Racing 3 still holds the crown as best racing game on a touch screen.
Nvidia's GeForce Now would be terrific if we could rely on consistent game support and more transparency by Nvidia.
It's a reasonable option if you want a wide selection of classes at a relatively low price.
With an elegant interface, weather information, and interactive maps, Yahoo Weather is a must-have for weather watchers everywhere.
If you're looking for a spare number to deal with people from Craigslist or similar services, FreeTone does the job, but with the syncing problems and so many ads, there are better apps out there.