I moved into my new place and needed to measure a window. Sure I have a very nice tape measure that was packed away in a box somewhere, but I needed to measure this window right now. I thought that there must be an app for that. Sure enough there are a few of them. However, the 1st ones I tried were only geared to measuring things that were no bigger than the screen on your iDevice. I needed an app that would allow me to measure several inches. Ruler Pro + fit the bill nicely. The app has a simple UI (user interface). Once you launch it, it displays a ruler on screen that is as long as your screen. However, once you line up your screen with the top of whatever it is you need to measure, just put one finger on your display and slide the iPhone, iPad or iPod touch. The ruler will scroll. Lift your finger once you get the iDevice as far down as you can go for the next measurement and put your finger down again. Just keep doing this until you get to the end of whatever it is you’re trying to measure and you’ll have the measurement. The app worked perfectly! However, I do have one complaint. You’re limited to 50″. I can’t for the life of me figure out why it would be limited at all, let alone at 50″? I needed to measure about 80″, so I had to mark it at 50″ and start again to get the rest. Other than this one limit the app does exactly what it’s supposed to. If I could suggest a feature, it would be nice to tap and be able to have the app jot down the measurements as you take them. This would save me from having to switch to a different app to actually write down the measurements or use pen and paper.