Spirit Level (Bubble Level)

works perfectly, no intrusive permissions, no ads. if you've got a camera bump, you'll need to use the calibrate button, but you can also use it screen down as it vibrates when you are level

Fast and easy to use, with no ads or data collection. A very helpful pause button, and both visual & audible notifications when the phone is level. Can also be calibrated if needed. It's the perfect app - many thanks, VV!

Simple and does just what you need. can pause so readings can be taken and pings when a surface is level. No ads unlike others.

It seems to do what it says. Simple, with no ads.

pretty good app, its easy to use and ad-free

No ads. Simple, effective and non intrusive.