Smart Ruler Pro

4.6
1.33K reviews
10K+
Downloads
Content rating
Everyone
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About this app

Smart Ruler Pro is the 1st set of Smart Tools collection.

It integrated 6 simple and useful tools into this app. Here is the list.

1. Ruler - length
2. ProtractorⅠ(Touch) - angle
3. ProtractorⅡ(Plumb) - slope
4. ProtractorⅢ(Camera) - goniometer, clinometer
5. Surface level - sprit level
6. Thread pitch - screw, bolt, nut

* Pro version added features:
- No ads
- Multi-Touch mode
- Caliper mode
- Ruler Extension
- Architectural and Engineering Scales
- Various Tilt units
- Screen capture

* Do you want more tools? Get [Smart Tools] package.

For more information, watch YouTube and visit the blog. Thank you.


* It is a one-time payment. The app price is charged only once.

** No internet support : You can open this app without any connection. After installation, open the app 1-2 times with your device connect to WI-FI or 3G/4G.
Updated on
Jul 6, 2022

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
4.6
1.33K reviews
Jeffrey “Der Kaiser” McAllister
August 11, 2022
I'm docking one star because the UI is ugly and because I can't switch from landscape to portrait mode when using the level. Other than that nitpickery, I'm really glad I paid for this because it's helped me a lot building and customizing bicycles. And it's comforting to know that there's stuff here I can use in the future, should the occasion arise. I hope the dev keeps up the good work and expands the tool set … lol and removes some of the UI's ugliness.
3 people found this review helpful
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Tony Luxton
November 13, 2020
Excellent app. Will go on the SD card. EDIT: Thanks for implementing the change I suggested. I can now change the text colour without the zero button being visible. It was too easy to press accidentally!
27 people found this review helpful
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Andrew Bryan
July 14, 2021
This is really great. The one annoyance is I usually have my phone in dark mode, but I want to select a white background for this tool.. but selecting "white" when in dark mode seems to result in a grey background
12 people found this review helpful
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Smart Tools co.
November 11, 2021
Thanks for your comments. This issue has been fixed in the latest update. Select the white background one more time in settings.

What's new

- v2.7.6 : More models are calibrated
- v2.7.5 : Support for Android 12