Millimeter Pro - screen ruler icon

Millimeter Pro - screen ruler vVARY

Millimeter Pro - screen ruler screenshot 0 Millimeter Pro - screen ruler screenshot 1 Millimeter Pro - screen ruler screenshot 2 Millimeter Pro - screen ruler screenshot 3 Millimeter Pro - screen ruler screenshot 4 Millimeter Pro - screen ruler screenshot 5 Millimeter Pro - screen ruler screenshot 6 Millimeter Pro - screen ruler screenshot 7 Millimeter Pro - screen ruler screenshot 8 Millimeter Pro - screen ruler screenshot 9 Millimeter Pro - screen ruler screenshot 10 Millimeter Pro - screen ruler screenshot 11 Millimeter Pro - screen ruler screenshot 12 Millimeter Pro - screen ruler screenshot 13 Millimeter Pro - screen ruler screenshot 14 Millimeter Pro - screen ruler screenshot 15

About this app

Developer Description

Accurate screen ruler to measure length, area, angle,TPI. Real full screen ruler

Millimeter is a screen ruler app. It uses the full screen of Android devices for distance and length measurements as a caliper or tape measure. Place an object on the scale paper screen and simply touch and move rulers to measure it. Check features for more details. Pro version measures area, circle, radius and diameter, angle, ratio, and splits into equal parts.

NO POP-UP ADS on your screen in the app unlike other free ruler apps on market. The best and real full-screen ruler.

☛ 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.

More about the app: goo.gl/aF9L9Q
Posts about the app: http://goo.gl/304nJB

📏 What you can do in Pro version:

- Calibrate Millimeter with custom or standard objects (💳)
- Ruler Mode for measure in metric and imperial units: mm and inch
- Use fractions for inch units
- Use the app as a standard ruler
- Use full-screen mode for better user experience in Ruler mode
- Additional vertical ruler for 2D measurements (📐)
- Area measurement for 2D measurements (⬛)
- Calculate the W/H ratio of the rectangular objects in 2D
- Parts Mode to split length into equal parts
- Thread per inch ( TPI ) measurement pattern (🔩) in Parts mode (https://youtu.be/M1Qrbs2bgCY)

- Spirit/bubble level for checking incline or tilt angle 🔮
- Circle Mode to measure circular objects (🔴)
- Split circle into equal sectors
- Protractor / Goniometer Mode to measure angles (⚪)
- Lock / Unlock rulers in any mode for better usability (🔒)
- Set exact size, length, diameter, number of parts manually with keyboard input (⌨)
- Change background to BW night mode for power saving (🔋) and better visualization (🌓)
- turn on/of the fine grid (1 mm for millimeter units)
- Read interactive Help / Guide about all available features in a mode

Use this screen ruler in different projects where you need to measure small objects that fit your screen: jewelry, rings 💍, screws and bolts, buttons and beads, nuts and washers, knitting pattern, insects, hooks, thread, etc.

Units: millimeter (mm), inch (in). Fractions are supported for inch units.

Supported languages:
- English, German, Russian, Japanese, and French.


☎ 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.


Note:
measurement range limited by the size of your screen and with fine calibration, the app gives you accuracy comparable to a standard ruler or measure tape.

What's New

v2.3.6
- fixes and improvements for new versions of Android
- snap to fractions option
- variable slide speed option (fast: top or right, slow: bottom or left)
- decimal grid in inches
v2.3.5
- fixes and improvements for new versions of Android
v2.3
- new Level feature
- fixes and improvements

v2.2 New features:
- Fine grid
- multi-touch support (for easy measurements when the object touches the screen)
- fixes and improvements
v2.1 - new Protractor Mode: https://goo.gl/wquu2s

Version Information

Version
-
Downloads
100K+
Updated on
Sep 6, 2025
Released
Sep 25, 2012
Requires
Android Varies with device

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Millimeter Pro - screen ruler - Google Play Rankings

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#22 in Top Paid Productivity in Japan

#29 in Top Paid Productivity in United Kingdom

#100 in Top Paid Productivity in India

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Millimeter Pro - screen ruler users say on Google Play

★★★★★
A Google user A Google user

Very very well put together. Minimalist and extremely user friendly. There's nothing I would change or add. Completely free of ads and privacy intrusions. This app should be part of every phone's toolset and I sincerely hope the developers keep the excellence flowing.

65 Nov 11, 2019
★★★★
Anne Knight Anne Knight

This app seems to be extremely accurate, but I do find it a little confusing to set up & use. I'm sure it will become easier as I use it more. The area function looks to be especially useful. Thanks. I consider it money very well spent.

18 Oct 4, 2020
★★★
Brian Ciesicki Brian Ciesicki

Honestly I bought it looking for a AR ruler. I didn't know what to call it until I saw more apps after I found it was unsufficient. I didn't know a "real life ruler" became a ruler. I thought it was a ruler replacement for real life. Honestly. After thinking about it, it might be handy to have a real world ruler as a secondary tool. Not handy as a mini-golf tournament runner. I need distances significantly over 10 cemtimeters.

8 Jun 1, 2023
★★
Lida “Boo” Blake Lida “Boo” Blake

It kept asking me to place on level surface

0 Jan 30, 2025
Steve Lewis Steve Lewis

Wanted an app to measure everyday objects like furniture or shelves when out and about. This app will only measure items that literally fit on your sceeen. This may be fine if you only need to measure dolls house fittings but not too many uses otherwise. If you are a borrower then this the thing for you, but, if you are a tiny person relatively speaking carting around a mobile to measure your home its not at all practical. For normal size people a bit of a waste of £1.39.

11 Oct 3, 2021

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