There are many reasons to enjoy Wi-Fi calling, from starting video chats with family far and wide, to giving your old phone a new lease on life as a Wi-Fi-only device in little Johnny's hands. However you want to use it, you still need to know which apps are best.

There are quite a few companies battling it out in the data calling space, each of which has its own benefits and drawbacks. Some offer voice-only calling while others allow for video calls, photo transfer, and group chat.

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Select apps share the love with other services, but others prefer to keep things in-house. I've spent some time playing with a handful of these clients over the last few years and found some to be incredibly useful. Here are five of my favorite apps for making free Wi-Fi calls.

Google Voice As the most used application on my phone, ... [Read more]

Office 2013 keeps you connected everywhere

Along with all the new features, the version of Microsoft Office revealed today (read CNET's review) is now available both as a standalone suite and by subscription. The options are tailored towards different use cases, depending on your productivity requirements.

Office 365 Home Premium, $99.99 per year, five PCs/Macs/Windows tablets: This is the "Microsoft recommended" version of Office. It comes with Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Access, 20 GB of SkyDrive storage, 60 global minutes per month on Skype, and Office on Demand for always-available Web access to the full suite. The 30-day free trial remains unchanged.

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Microsoft isn't promoting this heavily, but you can also buy a monthly subscription to Office 365 Home Premium directly from Microsoft. You get all the same features as the annual subscription... [Read more]

Feeling the storage crunch on your iPhone, iPod Touch, or iPad? A free utility may be able to help.

Last summer, CNET's Matthew Elliott took iMobie's PhoneClean for a test drive. The utility provides a "digital colonic" (Matt's words), cleansing any iOS device of useless and unnecessary files that might be consuming valuable space.

However, Matt wasn't willing to subject his iPhone 4S to PhoneClean's mysterious ministrations, only his iPad.

Wuss.

As the braver, dumber, blogger, I decided to let the newly updated PhoneClean 2.0 do its thing on my iPhone 4S. And you know what? It works, though don't expect miracles -- at best you might reclaim around a gigabyte of space.

Of course, if your device has only 16GB or even 8GB of storage, that might be a big deal. And regardless of how much storage you have, if you're running out of it, any extra space you can free up is welcome indeed.

PhoneClean scours internal memory in search of temp files, cached and offline files, cookies, script files, and "other" junk, which can get left behind by failed iTunes syncs. In version 2.0 (which... [Read more]

Choose from a number of premade Word templates in Office 2013.

After existing in preview form since last summer, Office 2013, the next version of Microsoft's productivity software, is now available for download.

More than a few versions of the software are available, but the basic story is that individuals can buy Office Home and Student 2013 with all the familiar apps like Word and Excel for a one-time fee of $139. Yet, since this stand-alone package won't entitle you to any subsequent upgrades, Microsoft would rather that you choose a pricier and more complete subscription model for $99 per year that delivers the various updates over the coming months and years.

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Yes, it's a lot more money, and Microsof... [Read more]

The OoVoo app for Android has been available for quite some time.

With the long-awaited unveiling of BlackBerry 10 finally coming later this week, it's no surprise that we are hearing a lot of chatter about app developers planning to bring their work to the new platform. The latest to join the club is OoVoo, the free voice, video, and text-messaging app that has for some time been available on Android and iOS.

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Even though it's widely speculated that the BlackBerry 10 OS will come with a new ... [Read more]