Apps Like Bubble LEVEL - High Accuracy for iPhone and iPad
Measure angles and convert units
Measure angles with precision up to 0.02°. Use surface and auto-select features for accurate readings. Convert angles between degrees, grade, and roof pitch. Includes a ruler for actual size measurements. No advertisements.
by Vitalii Gryniuk★ 4.7289 ratingsUtilitiesFreeData updated 2026-09-17
Lengths and angles using a digital ruler and protractor. Detect tilt, pressure, and metal with built-in sensors. Calculate distances and heights with realistic calibration. Sync measurements across devices and export data for analysis.
View VIIRS and DMSP satellite data with customizable overlays including clouds, auroras, and IAU observatories. Display SQM and SQC measurements for . Add personal SQM readings via email. Track radiance changes over time.
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.
Measure ambient noise levels in real time and save data locally. Generate visual reports from collected data. Record noise changes with camera forensics.
Calculate area, perimeter, and square-up using length, width, and height. Convert measurements between yards, feet, inches, fractions, and decimals. Perform unit conversions for math tasks.
Measure and map 3D terrain with X, Y, and Z coordinates. Save, email, or upload data to CAD. Calculate slope percentages and elevation above sea level. Include photos with location data and use built-in compass for accurate orientation.
Calibrate and Pendulum clocks by measuring and adjusting their beat period. Sync with a known accurate time source to correct drift. Monitor daily time gain or loss with precision up to 0.001 milliseconds.
Tune instruments with precise detection. Adjust level and quality thresholds for accurate readings. Display real-time frequency and note identification. Share tuning results via email or social media. Sync with iOS devices for seamless use.
Calculate weight and volume using width, length, and thickness. Input measurements in feet/inches or metric. Includes aggregate and asphalt calculators with precise results. Features high visibility text for direct sunlight use.
Measure with precise tools to ensure accurate grading. Compare alignment to PSA, BGS, CGC, SGC, TAG, and ACE standards. Adjust and save positions for consistent evaluation. Export measurements and track grading progress.
Convert units and currencies by typing queries in a single input field. Supports over 900 units and 170 currencies. Dynamically recognizes abbreviations and symbols. Search for conversions similar to web searches.
Use and AR to scan rooms and create 3D floor plans with precise measurements. Measure distances, heights, and lengths in real time. ccurate layouts for planning furniture or renovations.
Measure sound levels with a precision noise meter, including OSHA/NIOSH compliant dosimetry and impulsive noise detection. Display live spectrum and capture measurement snapshots. Email results and access hearing protection guidance.
Calculate trigonometric values for the by inputting radians or angles. Display step-by-step solutions and support negative numbers, decimals, and fractions. Save calculations in history and share results.