Ruler

Precise length measurement by using smart phone is possible.
It's easy to measure length of many stuff by using measurement length saving function.

The stuff that is longer than smart phone can be measured by using scroll mode.

How to measure length :
1. Fixed gradation
To measure length, place the object that you want to measure on the smart phone and place a finger on the screen and move toward the edge of the object

2. Scroll gradation
To measure the object that is longer than smart phone, place the object next to the smart phone and support both sides with thumb and middle finger and then touch the smart phone and measure the length by moving the smart phone little by little.

Feature:
- Function of measurement length saving
- Support cm, inch unit
- Set tiny gradation
- Support fixed, scroll mode