Precision Ruler description

At first
\nAlthough this app obtain the size information which is stored in the terminal, you need to adjust in the app initially if the size information is not accurate.
\nAll kinds of smartphone will become high-precision ruler app by adjusting in the app.
\nYou can measure the length easily whenever by smartphone from today.
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\nA special feature
\n- All models are corresponded by adjusting!
\n- High precision and correct!
\n- Both ends are rulers and can measure!
\n- At any time and easily with smartphone!