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.

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!

Checking 300 tools for correct angular placement, this paid app was the best way to verify using my camera. Downloaded free app then paid to support this developer & stop ads. Once bought app, it auto requested if I wanted to delete the free one, which I was glad so I didn't have to do this later. Strong suggestions: 1) Save or 🌟 icon to remember so I don't have to manually get the angles each time. 2) In white mode, make the selected angle white so I don't have to strain to read dark on light

What's new

- v2.7.7 : Support for Android 13
- v2.7.6 : More models are calibrated