A bubble level & spirit level is a tool used to check whether a surface level is (horizontal)or plumb(vertical). It is designed and works like a Real level meter. It is precise and Useful to provide you with accurate results. The bubble Level app is handy, accurate and easy to use. This level tool is unbelievable useful in scenarios where you do not have to carry a level meter with you all the time. Spirit levels had very slightly curved glass vials with a constant inner diameter at each viewing point. The vials are full of liquid, a coloured spirit or alcohol. Leave a bubble in the Tube. At slight inclinations, the Bubble travels away from the marked centre position, which is usually marked Where can you use Bubble Level? ✔ Use the Bubble Level to find the perfect calibrate and position to hang a picture or a photo frame onto the wall, or assemble a shelf, a refrigerator or a washing machine. ✔ Spirit level tool is used in construction, carpentry, metalworker, stonemasons, bricklayers, surveyors and millwright fields. ✔ This level app is a good helper if you want to set up a tripod for photography. ✔ The Bubble Level can help you place a levelled picnic table or tilted camping car in outdoor places. ✔ A spirit level can help you create flawlessly levelled pieces of furniture, balance a billiard table or tennis table and insert a shelf, hold your phone and use a spirit level. It’s a must-have Level tool for any home or phone. Highlights: ▪️ A horizontal( level) & vertical( plump) level tool. ▪️ Calibrate any side independently. ▪️ Calibration & reset functions. ▪️ Show slope direction and value of any surface level. ▪️ Calibrate relatively or absolutely. ▪️ Dark mode & light mode ▪️ Visual clinometer ▪️ A bubble level & a bull’s eye level ▪️ Provide screen lock to pause the readings. ▪️ Sound reminder to calibrate without looking at the phone. How to use the Spirit Level app: To determine whether a surface is horizontal or vertical, or to measure its inclination angle, you can just lay your phone flat on the surface, the bubbles in the tubes are stably in the centre of the Tube. You can also watch the bubble position and adjust the direction of the device appropriately. After determining the Positions of the bubbles, you can click the calibration button so that your measurement will be more accurate. Your device should already calibrated by the manufacturer. If you think the readings are wrong, you can re-calibrate your device by pressing the RESET button. This leveller app indicates horizontal when the bubbles are in the middle. It will show the actual angle in the meantime. The sound effects helped you to hear the result without looking at the screen. We provide accurate measurements for every user with this bubble app & level tool. But to get more data, please calibrate before use. If you have any questions, please feel free to ask us at [email protected]