Our phones have more processing power than desktop PCs did a few years ago. As a result, builders are ditching their tool belts and downloading some of the most powerful tools on their devices.

Here are some of the highest-rated and most useful apps we've found that can make life easier on the construction site.

Construction Instruction (Free, iOS)

Image via iTunes

Construction Instruction offers an array of high quality videos and articles with instruction on many construction projects. (See what they did there?) Search Ci's growing library of instruction and how-to content by product names, keywords, manufacturers, and more.

DEWALT Mobile Pro (Free, iOS)

Image via iTunes

Everything you'll ever need in a construction calculator is offered with DEWALT's Mobile Pro app. The construction + scientific calculator is full of useful features and is a must-download for iOS users.

Bosch Toolbox (Free, Android, iOS)

Image via iTunes

The Bosch Professional Toolbox app uses your phone's camera and turns it into one of the best camera measuring apps available.

sightLevel (Free, iOS)

Image via iTunes

sightLevel turns your iPhone into a virtual laser level. The app can measure slopes accurately and is perfect for "professionals and weekend warriors alike."

What apps do you have in your virtual tool belt? Tweet us or share on our Facebook page!

Andrew Knight is a content producer at Hanley Wood. Follow @AndrewKnight_HW.