Smart Level

Contains ads
4.3
7.03K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this app

Smart Level is in the 1st set of the Smart Tools collection.

This app measures the angle or slope of an object simply and accurately.
Put the back of your device against a desk, or put its short/long side on a frame.

* Main features:
- Surface level (bubble level)
- Spirit level (clinometer)
- Zero calibration
- Tilt units (degree, percent, radian, roof pitch)
- Lock screen
- Material design


* Pro version added features:
- No ads
- Ruler, protractor, 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.
Updated on
May 29, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
6.84K reviews
John Vanderlaan
May 22, 2026
fantastic little level app, even makes a noise when it's level so you don't have to see it
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Laura Page
October 19, 2022
When setting it on a surface to check level, I get a significantly different reading if I orient my phone 90-degrees. It should be exactly the same reading, just in a different plane, e.g. the X reading should equal the Y reading when the phone is moved 90 degrees. The phone is flat. I'm not sure which, if either reading, is accurate.
8 people found this review helpful
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Smart Tools co.
November 18, 2022
Your problem occurs because one axis of your device's built-in sensor is unstable. Try checking [Orientation Sensor] in settings. It allows the other sensor to be used when one of the sensors is inaccurate.
Rick Mckinnon
August 22, 2020
I generally use a 1-4 foot level to hang pictures and shelves. My levels turned up missing during the move, but this app was amazing. My pictures and shelves are plumbed and level. Quite HAPPY. Cause you know "happy wife=happy life "
22 people found this review helpful
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What’s new

- v1.3.1 : Minor fix
- v1.3.0 : Support for Android 16, ball color (blue, purple)