Smart Ruler Pro

Smart Tools co.

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.

Ratings and reviews

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.

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.

nice tool. but.. how to move base of the ruler (angle) from right to left side of the phone?

What’s new

- v2.7.12 : Support for Android 15
- v2.7.11 : More models are calibrated