Millimeter - screen ruler app

Millimeter - screen ruler app

vistech.projects·4.2 ★·FREE

Screenshots

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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).

☛ 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.

📏 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.

💳
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 (📐)
- Area measurement for 2D measurements (⬛)
- Calculate W/H ratio of the rectangular objects in 2D
- Spirit / bubble level for checking incline or tilt angle 🔮
- Parts Mode to split length or objects in equal parts
- Thread per inch ( TPI ) measurement pattern (🔩) in Parts mode (https://youtu.be/M1Qrbs2bgCY)
- Circle Mode to measure circular objects (🔴)
- Split circle into equal sector / angle
- Protractor / Goniometer Mode - measure angles

- Lock / Unlock rulers in any mode for better usability (🔒)
- Fine grid (1mm for millimeter units) 👍
- 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 (⌨)
- Change background to BW night mode for power saving (🔋) and better visualization (🌓)

Use this screen ruler in different areas to measure small objects that fit your phone or tablet screen: jewelry, jewels, rings 💍 , 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.

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

☎ 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.

Developer

vistech.projects

Developer ID: 6732255963723365752

View More Apps →

Ratings & Reviews

4.2

1,929 ratings

500,000+ downloads

5★
66%
4★
14%
3★
4%
2★
4%
1★
12%

Recent Reviews

Basil September

great app

Developer Response

Thank you for your feedback and support!

Jul 28, 2026

Jul 28, 2026

Ramkishor Namdev

v2.3.6

bahut hi perfect

Developer Response

Thank you so much!

Jun 26, 2026

Jun 26, 2026

Natalie Lanovaz

v2.3.6

I always use this when buying stuff online just to give me an idea of how big the product is.

Developer Response

Thanks a lot for your feedback!

Jun 12, 2026

Jun 12, 2026

City First

v2.3.6

its installation is free. everything is paid

Developer Response

Thank you for your feedback! You are almost right about it, still there is a free mode for measurements. The app works well and exactly as described. We did our best to let users know in the description what to expect before downloading. If you have any real issues with the app on your phone let us know at support@vistechprojects.com, we will help.

Jun 5, 2026

Jun 5, 2026

Katherine Heely

Difficult to set up

Developer Response

Thanks for your feedback! What exactly are you setting up? It works by default on many devices or you just calibrate it with a common object or ruler. If you have any questions or need help, send us a message at support@vistechprojects.com, will be glad to chat.

May 10, 2026

May 10, 2026

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