One of the best. One minor thing keeping it from being perfect. After trying all of the bubble level apps that don't require permissions this was one of the best. No ads  no permissions  incredibly small footprint  responsive and easy to read display  able to separately calibrate each side...The only problem is that it's too easy to hit the calibrate button. All it takes is a quick tap and whatever side you were working on will be off until you can find a perfectly level surface again. Hold for 3 seconds to calibrate would be better. Still better than anything else tho
January 01 2016