Micro Ruler

Tools

Micro Ruler is a free, accurate and easy to use screen ruler for your smartphone

Rating: 4.3; 19 ratings
Downloads: 5K+; on Google Play
Price: Free; No in-app purchases
Updated: Jul 29; 2026 · v10.5.0

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About Micro Ruler

Here is a simple screen ruler application that allows you to accurately measure short lengths in cm or inches. This measuring tool (portrait orientation, Android 6 or newer) works on most tablets, phones and smartphones, regardless of their screen size or of their connection to the Internet. However, a bigger screen size offers higher resolution and better view of the divisions.

Features:

-- two units of measurement can be selected, cm and inches
-- FREE application - NO ADS, no limitations
-- measurement of the length on the two long sides of the device
-- this app keeps the phone's screen ON
-- easy measurements using 2 sliders with multi-touch capability
-- three measurement modes
-- fraction or decimal inches
-- simple calibration process
-- up, down, left or right text orientation

What’s new

Version 10.5.0 · Updated July 29, 2026

- Dark theme added. - Improved control over sliders. - Text-to-speech added. - 'Rate app' button added. - Graphic improvements and fixes. - Exit confirmation. - Code optimization. - 1 cm offset for curved screens. - Settings data were fixed.

User reviews

Viorel Stan

Very useful

Michael

Perfect does exactly what is described

App details

Micro Ruler is a free Tools app for Android with 5,000+ installs on Google Play and a 4.3/5 average rating from 19 ratings. It was released on February 5, 2020 and last updated on July 29, 2026. It requires Android 6.0 or later.

Category: Tools
Rating: 4.3 / 5 (19)
Installs: 5,001
In-app purchases: No
Ads: No ads
Version: 10.5.0
Requires Android: 6.0
Content rating: Everyone
Released: February 5, 2020
Last updated: July 29, 2026

View on Google Play

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Alternatives to Micro Ruler

Looking for apps like Micro Ruler? Here are 6 similar Android apps on Google Play. The highest rated is Touch Screen Test (4.7/5), and all 6 are free to download.

Micro Ruler vs. alternatives
App	Rating	Price	Installs	Last updated	Compare
Micro Ruler	4.3 / 5	Free	5,000+	Jul 29, 2026
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Touch Screen Test +	–	Free	100,000+	Aug 20, 2026	Compare
Barometer	3.3 / 5	Free	10,000+	Jun 21, 2026	Compare
Magnetometer 3D	2.8 / 5	Free	50,000+	Jul 22, 2026	Compare

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