July 2, 2015

Smart Level (v1.0) manual

Hello. I'm android boy, the chief developer of Smart Tools co.,

For 4 years, I had no reason to develop a spirit level because I had released a protractor. app. Recently I found that most users would not install a protractor instead of a surface level.

Unlike pro version, it supports both portrait mode (for phones) and landscape mode (for tablet PCs). In the near future, I'll translate into more languages. Please wait for next update.


※ Introduction video



※ Main features
 1) Surface level
 2) Vertical spirit level
 3) Horizontal spirit level
 4) Zero calibration


※ Tile units
 ① Degree(˚)
 ② Percent(%)
 ③ Radian(rad)
 ④ Roof pitch : for US carpenters, 5½/12"


※ Menu & Settings
 - Text size, Text Color, Background color,
 - Show calibration, Tilt Units, Orientation sensor


※ Locking balls
Touch anywhere on the screen. "Holding..." text will blink. Later I'll consider adding a lock button.


※ Orientation sensor ??
Most level apps are using only an acceleration sensor. But this way has restrictions. When the slop is bigger than 60 degrees, the measurement can be inaccurate. In particular, it has a trouble to calculate diagonal tilt.

This app provides the best solution. Orientation sensor!! It calculates tilt using both magnetic sensor and acceleration sensor. The result becomes more reliable. I recommend that you turn on this option.

Several custom ROM and non-magnetic devices cannot activate orientation sensor. Please check your specifications and turn off this option.


 Pro version added features
 1) 6 tools (ruler, 3 protractors, thread) are integrated
 2) No ads
 Get it on Google Play


※ Pending updates
 - Various themes
 - Camera view


※ What's new
 - v1.0.4 : More languages
 - v1.0.3 : Appbar size fix
 - v1.0.2 : Russian support
 - v1.0.1 : Drawer update
 - v1.0.0 : Theme update (grey -> white)
 - v1.0 : Smart Level released (Jul, 2015)
https://play.google.com/store/apps/details?id=kr.sira.level

When you have any idea to improve it, feel free to contact me. Thanks.
androidboy1@gmail.com