Ruler App: Measure centimeters

Contains adsIn-app purchases
4.4
41.3K reviews
5M+
Downloads
Content rating
Everyone
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About this app

Ruler app for your phone and tablet. Measure everything with a beautiful on-screen ruler. Choose between inches and centimeters. Tap the screen to start using the best multi-touch measuring system and find the size of all curious objects around you. And all this for free.

• Fast and responsive interface with a beautiful modern design that looks great both on phone and tablet
• Imperial (inch) and Metric (centimeter / millimeter) units
• Very simple so everyone can use it - touch the screen and move the left and right handles with your fingers
• Smart history for your latest measurements
• Copy the current length to the clipboard and paste it into another app
• Multi-touch caliper tool functionality
• It is a handy tape measure, always in your pocket
• Calibrate the app if units are inaccurate. Grab a real ruler and follow the instructions in the Settings menu
• Learn more and send feedback at https://ruler.mobi
Updated on
Dec 28, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.4
39.6K reviews
Andrew
March 18, 2021
It's always out a little. They should really have you calibrate it with a larger increment so the accuracy is better. The larger the increment the less significant things like small perspective errors and rule widths are. That said, it can be useful if you don't need it to be perfect and just need a rough estimate.
217 people found this review helpful
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A Google user
November 14, 2019
Horrible app. I went to adjust the ruler calibrate to accurate size. It said I could use a credit card. I clicked done , it didn't even save the calibration in the least. It just kept saying the length was 12 inches. I wish my phone was that long. What utter lies. WORST APP EVER. The developers should be ashamed of themselves.
227 people found this review helpful
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A Google user