In this modern life, who actually still owns an old-school level? We mean, besides professional builders, and maybe your dad. Not only do they rarely get used, they also tend to take up a bit of space - a rare commodity in so many cities. When you simply want to hang a picture or put up some new IKEA shelves, there's no need to head to the hardware store in search of a level. Thankfully, your iPhone can now take care of this problem for you.
Before you start your handy work, open the compass app on your phone and ensure it has been calibrated (it only takes a few seconds to do it). Then, swipe left to reveal the level. Turn the phone onto its side or back to make use of your new tool.