Install
85 K
160
4.2
Category
Tools
Last updated
2026 July 21
Size
12 MB
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AntivirusStatus
McAfeeClean
FSecureNo result

Needs further review: this scanner has not returned a result for this version of the app.

SymantecClean
ClamAvClean
KasperskyClean
EsetClean
DrWebClean
ComodoClean
ZonerMobileSecurityNo result

Needs further review: this scanner has not returned a result for this version of the app.

GooglePlayProtectNo result

Needs further review: this scanner has not returned a result for this version of the app.

App screenshots

About this app

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.

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What’s new

- v1.7.3 : Scale
- v1.7.2 : More models are calibrated

Ratings and reviews

4.2out of 5
Based on 160 ratings