# Millimeter - screen ruler app

> Full screen ruler app with inch and millimeter units. NO POP-UP ADs.

Canonical page: [https://chrome-stats.com/d/com.vistechprojects.millimeter](https://chrome-stats.com/d/com.vistechprojects.millimeter)

## Overview

- **ID:** `com.vistechprojects.millimeter`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** vistech.projects
- **Category:** PRODUCTIVITY
- **Downloads:** 820,730
- **Rating:** 4.14 / 5 (1,932 ratings)
- **Version:** 2.3.6
- **Last updated:** 2025-10-10
- **First published:** 2012-09-15
- **Publisher country:** US
- **Size:** 9.75 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.vistechprojects.millimeter)
- **Website:** [http://www.vistechprojects.com](http://www.vistechprojects.com/)
- **Privacy policy:** [https://rebrand.ly/vtp\_pp](https://rebrand.ly/vtp_pp)

## Description

Millimeter is a free, full-screen on-screen ruler for phones and tablets that measures small objects in millimeters or inches. The app offers precise Calibration Mode using common reference items (coins, credit cards, etc.) and delivers an ad-free experience for accurate, real-size measurements.

Upgrade to Pro to unlock advanced tools: dual vertical rulers for 2D measurement, area and W/H ratio calculation, circle and sector measurement, Parts Mode and TPI patterns, protractor/goniometer, spirit/bubble level, fine 1 mm grid, fraction snapping and decimal inch scales, lockable rulers, keyboard input and night BW mode. Ideal for jewelry, screws, tiles, crafts, and quick on-device measurements. Available in English, German, Russian, Japanese and French. For support contact support@vistechprojects.com.

## Rankings

- #76,379 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.vistechprojects.millimeter.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Most reviews praise Millimeter for accurate measurements when properly calibrated, a simple, easy-to-use interface, and a generally ad-light experience. Users highlight its versatility for measuring a wide range of objects. However, frequent complaints focus on the pricing model and the need for a subscription, with some calling it expensive. Calibration is a common source of issues, including device-specific inaccuracies and zeroing problems. A few users noted occasional non-working behavior on certain devices.

### Pros

- Accurate measurements when properly calibrated
- Simple, easy-to-use interface
- Ad-free or low-ads experience
- Versatile for measuring a wide range of objects
- Generally reliable performance on many devices

### Cons

- Subscription pricing limits features and is viewed as expensive
- Calibration can be unreliable or device-dependent (zeroing issues on some devices)
- Occasional non-working behavior on certain devices

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.vistechprojects.millimeter)