Plenty of instructions

The CamRuler app has an extensive help section, but that won't save you from the interface. Read full review
Photo by: Screenshot by Jason Parker/CNET
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Choose reference object

CamRuler offers several reference objects to choose from, including common paper sizes and common coins and bills from several different countries. Read full review
Photo by: Screenshot by Jason Parker/CNET
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Resize the rectangle

I'm not far off here with the size of the paper, but trying to get that rectangle to fit around the paper in the photo was nearly impossible. It's almost like a game where the app fights you every step of the way. Read full review
Photo by: Screenshot by Jason Parker/CNET
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Circle-shaped paper

When I decided to touch the Area button on the bottom to resize my rectangle around the paper, the app gave me a circle with no way to go back. Read full review
Photo by: Screenshot by Jason Parker/CNET
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From frustration to anger

After all my minute adjustments and trying to fix the outline of my reference object, there was no way to go back to the previous screen. I guess I should just start over from scratch. Read full review
Photo by: Screenshot by Jason Parker/CNET
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