Measure length, track noise levels
Measure lengths with a ruler supporting metric and inch units. Detect ambient noise levels using a decibel meter. Use a protractor tool to measure angles via camera. Calibrate and view objects for precise measurements.
Showing 241–260 of 1,000 ranked alternatives.
Jacob Parker
Objects with your iPhone
Distances with a 5-meter by aligning the phone on a surface and sliding it for accurate readings. Use mode to small objects by placing the phone between them and viewing the result. Save and share measurement data directly.
意 胡
Measure PD and lens height
Measure pupillary distance and lens height for accurate eyewear fitting. Perform far and near PD measurements with smart calibration. Use virtual try-on features and manage multiple user profiles.
海英 王
Measure , track air pressure, customize themes
Measure in real time using GPS and sensor data with less than 3-meter error. Track air pressure and oxygen concentration. Customize themes for personalized backgrounds.
Sten Kaiser
Measure speed with motion detection
Measure speed of vehicles, boats, skiers, cyclists, and animals using motion detection. Track moving objects with a handheld device. Includes three speed measurement tools and two distance estimation tools.
MONIQ TAP COMPANY LIMITED
And measure surfaces accurately
Measure horizontal and vertical surfaces with a . Use a laser for precise alignment. Check surface flatness with a spirit . Access inclinometer for angle measurements. Set and track levels for accurate tasks.
齐 陈
Decibels with one tap
Ambient noise levels with a simple interface. Display one-minute average decibels in large text. Features clean design and free access. No additional functions or settings provided.
Aram Meir
Point and measure with AR camera
Use AR technology to measure lengths, heights, and angles by pointing the camera at objects. Capture and save measurements with the photo . Check alignment using the built-in level tool.
嵩 张
Measure angles with device and lines
Measure angles by placing the device on the desired surface and adjusting two lines to align with the angle's sides. Display degrees in real time without needing photos or overhead placement.
Apera Instruments, LLC
Test parameters via Bluetooth
Connect to Bluetooth-enabled testers to measure pH, conductivity, TDS, salinity, resistivity, ORP, and temperature. View data in Simple, Dial, Graph, or Table modes. Save and manage measurement records in a cloud-based system.
Ngo Bien
Detect noise, alert, test hearing
Detect noise levels in real time and receive alerts when exceeds safe thresholds. Test hearing loss and measure noise in cars or buildings. Compare noise levels against standards. Play calming music to aid focus and relaxation.
永超 侯
Measure sound, analyze spectrum
Measure sound levels with readings. Analyze sound frequency with spectrum visualization. Generate custom tones for testing or experimentation. Save and share measurement data.
FORBIS s. r. o.
Control lights with Apple Watch
Control lights remotely via Apple Watch. Use spirit level, compass, and ruler for measurements. Access flashlight with sound effects. All are free and easy to use.
URVO PIIRISILD
Measure objects instantly with your phone
Measure objects using screen or AR camera for precise dimensions. Switch between inches, centimeters, and millimeters. Capture and save measurements for later reference. Share results via email or messaging.
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