OneTool: Level, Ruler, QR

OneTool puts 21 everyday tools into one light app: instead of installing one app for the level, one for QR codes and one for the flashlight, you have them all in one grid. MEASURE • On-screen ruler and protractor • Bubble level • Compass and altimeter • GPS speedometer • Unit converter CAMERA AND LIGHT • Magnifier and mirror • QR code and barcode scanner • Flashlight and strobe • Light flicker detector • Heart rate with the camera (for reference only, not a medical device) SOUND AND TIME • Sound meter to measure noise in decibels • Stopwatch, timer and metronome UTILITIES • Calculator • QR code generator • Secure password generator • Metal detector using the magnetic sensor You choose what to see: in Settings > Visible tools you hide the ones you don't use and reorder the grid. Free with no limits: level, ruler, compass with altimeter, QR scanner and flashlight. A short video unlocks every other tool for 24 hours, plus the choice of visible tools, the language and the theme. A pocket toolkit, a real toolbox on your phone: a bubble level to hang a picture, a ruler and protractor for objects and angles, a compass, a QR code reader and a flashlight always at hand. Works offline, no internet needed. No account and no server: nothing you measure leaves your device.

Improved video loading and minor fixes.