Ruler

A simple, user-friendly and accurate ruler for your phone!

Use a coin or a credit card to calibrate the ruler anywhere, when you don't have a real ruler with you!

- Ad free, for real, forever!

- Pick your units: fractional inches, decimal inches, centimeters or millimeters

- Calibrate your ruler with a credit card to get you started anytime, anywhere

- Don't have a credit card with you? Calibrate your ruler with a coin!

- Calibrate your ruler with a real ruler to achieve the best precision in your measurement transfers

- Manually set the ruler to a known length for accurate measurements

- Night mode to save battery (on AMOLED screens) and to relieve your eyes at night

- Save your measurements for future use

- No permission required

Update history:

3.5 -- Millimeters, set to predefined length

3.3 -- Calibrate with a credit card, remove saved measurements from history

3.2 -- Fractional display of measurements in inches

3.0 -- Android Material theme and new scale for measurements in inches

2.1 -- Calibrate with a coin, default calibration button (reset)

2.0 -- You can now save your measurements

1.7 -- Night mode to save battery and/or read more easily at night

1.6 -- Added default calibration for common devices (Nexus series, Galaxy S series, Galaxy Note 1, 2 and 3)

一个简单的，用户友好的和准确的标尺为您的手机！

用硬币或信用卡的任何地方校准标尺，当你没有一个真正的统治者与您合作！

- 广告免费的，真正的，永远！

- 选择你的单位：分数英寸，小数英寸，厘米或毫米

- 校准你的统治者用信用卡，让你随时随地开始，随时随地

- 不要有信用卡吗？校准你的统治者用硬币！

- 校准你的统治者与真正的统治者，以达到最佳精度的测量转移

- 手动设置标尺已知长度的精确测量

- 夜间模式，以节省电池（上AMOLED屏幕），并以减轻你的眼睛在夜间

- 保存您的测量以备将来使用

- 无需许可

更新历史：

3.5 - 毫米，设置预先定义的长度

3.3 - 校准用信用卡，请从历史保存的测量

3.2 - 测量以英寸为单位的分数显示

3.0 - 安卓材料的主题和新的规模为英寸测量

2.1 - 校准用硬币，默认校准按钮（复位）

2.0 - 现在，您可以保存您的测量

1.7 - 夜间模式，以节省电池和/或在夜间更容易阅读

1.6 - 增加了默认校准为常见的设备（的Nexus系列的Galaxy S系列，Galaxy Note的1，2和3）