Smart Ruler APK

Version 1.6.4 - kr.sira.ruler

Measure the length of a small object with your phone.

Smart Ruler apk

APP Information

Download Version 1.6.4 (54)
Apk Size4.82 MB
App DeveloperSmart Tools co.
Malware CheckTRUSTED
Install on Android4.1.x and up
App Packagekr.sira.ruler.apk

Download Smart Ruler 1.6.4 APK

App Description

Smart Ruler is sira,ruler,tools,smart, content rating is Everyone (PEGI-3). This app is rated 5 by 1 users who are using this app. To know more about the company/developer, visit Smart Tools co. website who developed it. kr.sira.ruler.apk apps can be downloaded and installed on Android 4.1.x and higher Android devices. The Latest Version of 1.6.4 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 4809+ times on store. You can also download kr.sira.ruler APK and run it with the popular Android Emulators.

Smart Ruler is in the 1st set of the Smart Tools collection.
This app measures the length of a small object by touching the screen.
Usage is very simple.
1. Put an object on the screen of your device.
2. Adjust the object to the left of the screen.
3. Touch the screen, adjust the red line and read the length.
* Main features :
- Multi-touch
- Meter  Inch
- Background color
- Material design
I calibrated the app on a lot of Android devices. If it is not accurate, you can enter the actual width with [Calibration] menu.
* Pro version added features:
- No ads
- Caliper mode
- Architectural and Engineering scales
- Ruler extension
- Protractor, level, thread pitch
* Do you want more tools?
download [Smart Ruler Pro] and [Smart Tools] package.
For more information, watch YouTube and visit the blog. Thank you. 

App ChangeLog

  • - v1.6.4 : Support for Android 12
  • - v1.6.3 : Lock button added

App Screens

Smart Ruler App Screen 1Smart Ruler App Screen 2Smart Ruler App Screen 3Smart Ruler App Screen 4Smart Ruler App Screen 5Smart Ruler App Screen 6

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Priscilla Flach-avatar

    Priscilla Flach

    Its great. Very user friendly. Gives me an ideas of the size small objects will look like.

  2. John Teye-avatar

    John Teye

    You deserve 5 star ⭐ by all standards. I really love the app

  3. Assan/Hanson Njie-avatar

    Assan/Hanson Njie

    A very good and helpful tool

  4. Cameron Straker-avatar

    Cameron Straker

    Sure, it's just a ruler. But it does exactly what it needs to. I'm not bothered by ads, I'm not repeatedly offered a premium subscription, and I don't get endless notifications asking me to go out and measure stuff. Much respect to the developer.

  5. Blixy-avatar


    I like this app! Very recommended. Barely any ads! The only two things they could work on is to have a more easy to use calibration system and to be able to type in the size of the measurement you want. But really good

  6. Richard MUNN-avatar

    Richard MUNN

    Too many adverts!!!!! Amount seems to go up everytime you use it. Cannot even open the app without one popping up and then having to wait for it to close before you can use the app. Dont bother to install

  7. Reese Murdock-avatar

    Reese Murdock

    Video ads = uninstall. Your ads at the bottom of the screen were unobtrusive. Having to wade through video ads just to get to a convenience app that I only occasionally use? That's no going to happen.

  8. Rafael Cieslik-avatar

    Rafael Cieslik

    It's okay. Whenever I need to measure something small I keep returning to this app. Big plus: ads are barely noticeable.

  9. Trey Rose-avatar

    Trey Rose

    Ads are acceptable when they are unobtrusive, the newer ad system made me wait 30 seconds to measure something... I'll find a paid one instead.

  10. Rick Corbishley-avatar

    Rick Corbishley

    Great. Got me out of a scrape a few times when I needed an accurate measurement. Accurate and can be calibrated.