1. Ruler – for length
2. Protractor?(Touch) – for angle
3. Protractor?(Plumb) – for slope
4. Protractor?(Camera) – goniometer, clinometer
5. Surface level – for level
6. Thread pitch gauge – for screw, bolt, nut

* Pro version added Features :
- Protractor?, Surface level.
- Multi-Touch mode
- Caliper mode
- Architectural and Engineering Scales
- Ruler Extension
- Various Tilt units
- No ads

What’s New:
- v2.5.6 : OS4.4 Kitkat and Nexus 5 support.
- v2.5.5 : More models calibrated (Galaxy Note3).
- v2.5.4 : Screen capture on Protractor 3.
- v2.5.3 : More models calibrated (2nd-gen Nexus 7, SGS4).
- v2.5.1 : Thread Pitch update.
- v2.5.0 : ActionBar added.
- v2.4.5 : Caliper mode updated. Nexus 10 support.
- v2.4.4 : Top margin on Protractor? added.
- v2.4.3 : Nexus 7 support.
- v2.4.2 : Black background color.
- v2.4.0 : Thread pitch gauge update. horizontal level bar.