Smart Ruler Pro

1.36K reviews
Content rating
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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
Mar 21, 2024

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

1.28K 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.
6 people found this review helpful
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Josh Gross
January 13, 2024
I looked at a lot of apps and it the best by far. I like that I can change the units for the level app, very few level apps support that. It is also great to be able to change the font sizesize, I don't know why so many of these apps use a microscopic font which is useless in the field. The level app does not support portrait mode, which is not a big deal but would be a nice option. I had a question for the developer and they got right back to me.
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Brett&Katie Holmes
April 11, 2024
Excellent app. I'm using a phone case with a flat edge, eg.No volume buttons sticking out, and this app is surprisingly accurate. 5stars from me, great price too. ⭐⭐⭐⭐⭐. Cheers to the team at Smart Ruler🤙