Full screen ruler app with inch and millimeter units. NO POP-UP ADs.
About Millimeter - screen ruler app
Millimeter - screen ruler app is a productivity app developed by vistech.projects.
Download Statistics
Millimeter - screen ruler app has been downloaded 820 thousand times. In the last 30 days, the app was downloaded 1.8 thousand times.
User Ratings
Millimeter - screen ruler app is rated 4.16 out of 5 stars. The rating is based on 1.8 thousand ratings.
App Information
Millimeter - screen ruler app is FREE to download. The APK download size is 9.75 MB. The latest version available is 2.3.6. The last update was on October 8, 2025.
Technical Requirements
Millimeter - screen ruler app requires Android 9.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2012.
Description
Millimeter is a free, easy-to-use screen ruler app that lets you measure small objects that fit on your phone or tablet screen. Enjoy accurate, ad-free measurements and a clean full-screen experience (full-screen mode is included in Pro).
๐ Key Features
Accurate measurements on any device: Easily calibrate your screen ruler in Calibration Mode using common reference objects such as coins, credit cards, or other standard items.
Customizable experience: Upgrade to Pro to unlock extra tools and advanced measuring modes for even more flexibility.
๐ Free Version Includes:
- Screen calibration using standard or custom objects. - Basic Ruler Mode for measuring in metric units (mm).
๐ณ Pro Version Unlocks:
- Multiple units: millimeters (mm) & inches (in) with fractions and decimal scales. - Vertical ruler for 2D measurements. ๐ - Area measurement for objects on the screen. โฌ - W/H ratio calculator for rectangular objects. - Spirit / bubble level to check tilt or incline. - Parts Mode to divide lengths or objects into equal segments. - Thread-per-inch (TPI) pattern for measuring threads and screws. ๐ฉ - Circle Mode to measure circular objects and split circles into equal sectors. ๐ด - Protractor / Goniometer for angle measurements. - Lock / Unlock rulers in any mode for easier handling. ๐ - Fine grid (1 mm) for precise alignment. ๐ - Snap-to-fraction & variable slider speeds for smooth control. - Manual input for exact sizes, diameters, or part counts. โจ - Black & White theme for power saving and better contrast. ๐
๐ง Perfect for Measuring:
Jewelry and rings ๐, screws and bolts, buttons, knitting needles and patterns, washers, insects, mosaic tiles, hooks, craft materials, frame angles, and more – any small object that fits your screen.
๐ Supported Languages:
English, German, Russian, Japanese, and French.
๐ Support
If you encounter any issues, please contact us at support@vistechprojects.com – we’re here to help.
๐ Learn more: http://goo.gl/304nJB
VisTech.Projects Team
Recent changes: v2.3.6 - fixes and improvements for new versions of Android - snap to fractions option (paid) in Pro - variable slide speed option (fast: top or right, slow: bottom or left) (paid) in Pro - decimal grid in inches(paid) in Pro v2.3 New features: - new Level feature available in Pro v2.2: - Fine grid - lock screen - 2D ruler - multi-touch support (for easy measurements when the object touches the screen) v2.1: Protractor Mode( paid) in Pro: https://goo.gl/wquu2s
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Comments on Millimeter - screen ruler app for Android
โ โ โ โ โ Reality Dictatesยท Feb 7, 2024
VERY USEFUL! An Accurate Tool for measuring very tiny objects and larger ones as well! ๐๐๐ป
โ โ โ โ โ jessica siuยท Feb 25, 2023
I used a 8ย mm earring for measurement and it's really accurate. Even with default calibration it shows what it has to show. With the size of a credit card for calibration it comes as a handy tool too if the default falls short, so it's a well done indeed. So now I can at least have an idea when I online shop how big an object is.
โ โ โ โ โ RK Ohashiยท Apr 24, 2021
When you need to measure something and not carrying a tape measure, what does everyone always carry? Their phone! Shows in either millimeter /centimeter or inches. Highly recommend!
โ โ โ โ โ Julius Virbickasยท Nov 19, 2020
Very convenient tool, easy to use and accurate as long as you calibrate it correctly.
โ โ โโโKarthikeyan Kยท Jan 6, 2022
Not having any instruction on how to measure. Can we take photo to measure? Or it is possible to upload? What can we do just with ruler?
โ โ โโโDennis Keppnerยท Nov 29, 2025
$30 a year? Yea, tell you what, I'll trade you a bridge. If I wanted only a display I could have taken a picture of a ruler.
โ โโโโDebbie Judyยท Jun 20, 2022
I installed this app along with other apps, and I'll be damned if I can figure any of them out. No real instructions.
โ โโโโEddy Neuretยท Jan 13, 2026
Sorry but not being able to do one or two measurements w/o buying a subscription is ... Just encouraging to develop my own app
โ โโโโB Cยท Jun 22, 2022
It is OK can u have little arrows in the circle measurement but pointing to where's its measuring and maybe have cm option to please.
Google Play Rankings for Millimeter - screen ruler app
This app is not ranked
Technologies used by Millimeter - screen ruler app
Millimeter - screen ruler app is requesting 8 permissions and is using 24 libraries.
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