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.
How many times has Millimeter - screen ruler app been downloaded?
Millimeter - screen ruler app has been downloaded 820 thousand times. In the last 30 days, the app was downloaded 1.5 thousand times.
What is the rating of Millimeter - screen ruler app?
Millimeter - screen ruler app is rated 4.16 out of 5 stars, based on 1.8 thousand ratings.
Is Millimeter - screen ruler app free?
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.
What are the requirements for Millimeter - screen ruler app?
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 simple free screen ruler app. You can measure small objects that fit the device screen with this ruler. There are NO ADs in the app for the best experience and real full-screen measurements (with subscription).
โ ANY DEVICE can be calibrated for accurate measurements in Calibration Mode, where common standard objects (coins, credit cards, etc) can be used as a reference.
You can also customize your app by purchasing extra features or modes.
๐ What you can do in the free version of the on-screen ruler:
- Calibrate Millimeter with custom or standard objects - Ruler Mode for the measure in metric units.
๐ณ You can upgrade your free version to Pro by subscribing and unlocking extra modules and features that add the following functionality:
- Units: millimeter (mm), inch (in). - Additional vertical ruler for 2D measurements (๐) - Area measurement for 2D measurements (โฌ) - Calculate W/H ratio of the rectangular objects in 2D - Spirit / bubble level for checking incline or tilt angle ๐ฎ - Parts Mode to split length or objects in equal parts - Thread per inch ( TPI ) measurement pattern (๐ฉ) in Parts mode (https://youtu.be/M1Qrbs2bgCY) - Circle Mode to measure circular objects (๐ด) - Split circle into equal sector / angle - Protractor / Goniometer Mode - measure angles
- Lock / Unlock rulers in any mode for better usability (๐) - Fine grid (1mm for millimeter units) ๐ - Fractions for inch units. - Snap to fractions when moving sliders - Decimal scale for inch units - Variable sliders/rulers speed: top or right side of the screen - fast, bottom and left - slow. - Use full-screen mode for better user experience
- Set exact size, length, diameter, number of parts manually with keyboard input (โจ) - Change background to BW night mode for power saving (๐) and better visualization (๐)
Use this screen ruler in different areas to measure small objects that fit your phone or tablet screen: jewelry, jewels, rings ๐ , stones, screws, bolts, buttons diameter, nuts, knitting needles, knitting patterns, washers, insects, mosaic tile, hooks, thread, frame wrap angle, etc.
Supported languages: - English, German, Russian, Japanese, and French languages.
๐ More about the app: http://goo.gl/304nJB
โ If you have any problems with the app on your device, please contact support@vistechprojects.com first, and we will help you. Thank you.
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 Xยท May 9, 2024
Works as good as I need it to! Checked with a caliper, the initial generic calibration was actually within about 0.2% of being correct (was set initially upon app startup at 4.07"). A clear ruler that can fit flat on your screen would work well for your calibration. Remember, calibrate at the largest size measurement device you can accurately align with on the screen. While app can calibrate with a coin, calibration will have less error at I.E., 5.00" vs 0.75".
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 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 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 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 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 โโโโCity Firstยท Jun 5, 2026
Its installation is free. Everything is paid
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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Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
