Viewlers Free Ruler Measurement App app icon

Viewlers Free Ruler Measurement App

Measure lengths in cm or inches using this visual or digital ruler app

RizbIT Apps · appinventor.ai_rafhelp.Viewlers

Not rated yet 1K+ downloads v7 3.7 MB Android 2.1+ PEGI 3 · Everyone

Download APK 3.7 MB All versions
  • Signature matches the Google Play version Details

At a glance

Latest version
v7 (7)
Updated
Jul 19, 2025 (1 year ago)
APK size
3.7 MB
Requires
Android 2.1+ (API 7)
CPU support
Any (no native code)
Category
Tools (app)
Listed since
Jun 15, 2021 (at least)
Permissions
10 (5 sensitive)
Website
RizbIT.UK
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Viewlers Free Ruler Measurement App is an app by RizbIT Apps in the Tools category, listed since at least June 2021. It has no native code, so it runs on any Android processor.

It asks for 10 permissions, 5 of them sensitive, including precise location, camera and approximate location.

What's new in v7

Few minor bug fixes

Description

From the listing uploaded by “appupdater”.

This is a free fully functional ad supported app. Viewlers combines on-screen digital rulers and visual rulers by using your camera. They both can give accurate length measurements which depends on your devices screen size and dpi. In general the bigger the screen the more accurate the result. You can manually enter the screen DPI by finding the value for your phones screen, or you can use the dpi website in the app to find it. You can also do manual calibration by increasing or decreasing dpi by 1. The rulers are drawn as inches and centimetres. The measuring vertical line can be dragged to the required position or positioned by tapping on either side of the screen to give readings in inches, cm and mm. Visual Ruler requires that you select a known length, take a picture using your phone and then position 4 measuring lines on screen over the photo taken to calculate length of unknown object relative to known object. When you take the photo position both objects near each other and try to zoom in on them as much as you can. This means you will get more accurate results. Many known length objects are included like coins, sim card and dvds. You can also convert lengths to most popular units using the built in converter. Video demonstration available via Youtube. There is also a sharing screen that allows you to share this cool new app via sms and social widgets to all your friends and family. Please rate and leave a comment after you use our app!

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Jul 19, 2025.
  • Certificate issued to “RizBit” This is the certificate of the Google Play version.

Store checks and file details

  • Developer signature verified Jul 19, 2025
  • Validated against Google Play Jul 19, 2025
  • Signed byCN=rizbit apps, OU=admin, O=RizBit, L=Blackburn, ST=Lancashire, C=UK
  • Signing certificate (SHA-1)A1:1E:6E:05:A1:1D:C9:D3:5B:8A:9F:80:1E:E4:86:99:A9:9C:E5:B5
  • File MD52599d731ecf1da6ad88ebec417e509cb
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

Viewlers Free Ruler Measurement App requests 10 permissions, 5 of them sensitive.

Required hardware & features

Viewlers Free Ruler Measurement App APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Viewlers Free Ruler Measurement App APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 2599d731ecf1da6ad88ebec417e509cb.

Tags

appinventor ai_rafhelp viewlers tools

More Tools apps