But for other users in US who don’t actively use CM, this can be highly impractical and you must pay to be able to measure in inches. This ruler only measures in CM, which is not bad. 10-15 secs of measuring and 10 secs of a pixelated screen prompting you to upgrade. There is a set amount of SECONDS that you can measure for before the ruler becomes pixelated and you are prompted to upgrade or wait 10 seconds before you can continue measuring. And developer, if you are reading this, go stick your head in a trash can, delete this app, and never make anything again, because you WILL mess it up. How did this app even get 2-star ratings? After 30 seconds, I just deleted this stupid waste of my time. EXCUSE ME? I used it for 3 seconds! How did I exceed any limit? Just thinking about this freaking app makes me want to hurl. Buy the upgrade to cancel this limit or wait 20 seconds. Then, after 3 seconds of using the so-called “ruler”, a message popped up: measure time “exceeded”. I first downloaded it just to use for homework, but after opening it for 2 seconds, a purchase ad came on, and I pressed “cancel”. What the hell? Also, just seeing that this trash “app” actually is only free when you use it for 3 seconds is completely outrageous! It’s not even worth your time and money, and I have no idea why there are so many good reviews on this thing. Ok, starting with the fact that this thing is not even that accurate, and even to use it for more than 5 seconds will cost me 5 dollars?!

Life size ruler on screen