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!

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

What's new

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