Centimeter Ruler is a free ruler app for Android developed by Stepanchenko Dmitriy. The app is categorized as a Utilities & Tools app and provides a simple centimeter ruler with basic features for measuring small objects.

The app's main features include horizontal dragging, color change, and calibration settings. The horizontal dragging feature allows users to move the ruler horizontally to measure objects that are longer than the screen size. The color change feature allows users to change the color of the ruler to their preference. The calibration setting feature allows users to calibrate the ruler to ensure accurate measurements.

Overall, Centimeter Ruler is a simple and straightforward app that fulfills its intended purpose of providing a basic ruler for measuring small objects. It is easy to use and has a clean interface. However, the app does not offer any advanced features or customization options.