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.

Step 1. Download Smart Ruler Pro Mod (Paid for free Free purchase) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Smart Ruler Pro Mod (Paid for free Free purchase) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Smart Ruler Pro Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.