The Brando Three-Axis Bubble Level cube fits into your camera's shoe mount and—as the name suggests—checks the angle of your shot against three bubble levels. It's small, simple, and only ...

However, you might not get an exact 0.0° if your device has a protruding back camera. It's worth noting, though, that Google's bubble level is exclusive to phones and tablets. It isn't available ...

In the Google app or Chrome on your mobile device, iPhones included, simply type “bubble level” and hit enter. Along with the Wikipedia entry, you’ll be treated to a functional bubble level ...