Bubble Level Pro is a simple, accurate, and beautiful Spirit Level for your iPhone or iPod touch.

Great for picture frames, tables, anything in need of alignment.

Features:

- Fully functional digital level.
- Measure ring, Make you more convenient measurement.
- Measure the level of surface.
- Can be calibrated and will be saved automatically.
- calibrating function, making precise measurements possible
- horizontal measurement
- vertical measurement
- measurement on inclined surfaces of 45 degrees
- Display more accurate angles to one tenth of a degree
- Retina Support
- More coming

** You can use this tool for:

- Home tool, photo picture alignment
- Measure pitch or grade of a slope or mountain
- Measure the horizontality of a floor
- Measure the verticality of a wall or furniture
- Measuring the banking of a boat, aircraft, car
- Calculation of roof pitch
- And endless more possibilities...

Thank you for all your support and great reviews.