Millimeter Pro - screen ruler

Name: Millimeter Pro - screen ruler
Price: 3.99 USD
Rating: 4.4 (108 reviews)
Author: VisTech.Projects LLC

By: VisTech.Projects LLC App

best tape measure in inch mm

Overview

Version:

2.0.16

Last updated: 2024-09-27

Ranking

#133,469 ▼ 72

Overall

Features & Capabilities

Millimeter Pro is an easy-to-use measurement tool for iPhone and iPad that turns your screen into a versatile ruler. It supports millimeters and inches, 2D vertical and horizontal rulers, area calculations, and length, angle, and ratio (W/H) measurements.

It also includes circle radius estimation, diameter calculation, Protractor/Goniometer mode, and a thread pitch gauge for TPI and pitch size. Use it for small objects like jewelry, screws, beads, stones, and other tiny items, with a touch-screen lock to freeze measurements.

User Growth & Download Statistics

App Education Developer Tools

By:

VisTech.Projects LLC

Rating:

4.40

(108)

Version:

2.0.16 Last updated: 2024-09-27

Version code:

867115858

Creation date:

2013-04-11

Compatible devices:

Size:

23.73MB

Price:

3.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-08-16

Compare stats and ranking:

Ranking

# 133,469 ▼ 72

For Developers

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Contact the developer

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Developed by:

VisTech.Projects LLC

Apple Apps Store

https://apps.apple.com/us/app/millimeter-pro-screen-ruler/id631810777

Website:

http://vistechprojects.blogspot.com/search/label/Millimeter

User Reviews

Summary: Users find Millimeter Pro useful for quick, on-the-fly measurements of small items and for diameter-based sizing, with a simple, intuitive interface. However, many reviews flag recurring calibration and accuracy issues, device-dependent scaling (notably between iPhone and iPad), and a subpar UI that makes precise adjustment tedious. Some functionality is limited (not ideal for angles), and the app can be inconsistent across updates and devices. Overall, it's handy for quick checks but unreliable for precise, cross-device measurements.

Pros

Easy to use and intuitive interface.
Great for measuring small items and for quick, on-the-fly measurements.
Diameter ruler feature helps visualize mm/inches, useful for jewelry and similar sizing.
Visual, ruler-like feedback makes size estimation straightforward.
Simple, fast tool that turns your phone into a measuring device.

Cons

Calibration/accuracy issues across devices and after updates, with measurements drifting or being off.
Clunky UI for precise adjustments (needs typing exact numbers; dragging is limited; lock/orientation confusing).
Device compatibility and scaling problems (iPad vs iPhone differences; sizing varies by device and after OS updates).
Limited functionality (not suitable for angle calculations; best for simple shapes; excessive digits can hinder readability).

Recent reviews

This app used to be amazing but suddenly the calibration is very off so it’s completely inaccurate.

by La*****, 2025-11-19

The app seems broken and that the only way you can change any angle / dimension / etc is to type an exact number. You need to do *something* if the user is tapping and dragging around. Even if it’s flashing the lock icon. Or default the lock to off. I get it finally, but also the fact that orientation is locked makes it really confusing what the lock does. Also, when you set a diameter and then go back to set it again, the value has mysteriously halved.