Measure atmospheric pressure and altitude. Switch between pressure units like hPa, mmHg, and inches of mercury. Display real-time readings and track changes over time.
by Chen-Yu Wei★ 5.01 ratingsUtilitiesFreeData updated 2026-09-06
Measure ambient sounds and noise levels using iPhone or iPod. Record audio and view real-time decibel readings. Stop recording at any time and playback recorded . Display FFT viewer and frequency for detailed analysis.
Convert units across categories including length, weight, speed, and volume. Switch between metric and imperial units. Perform calculations for conversions and save frequently used values. Share results via copy or email.
Calculate using house width, length, and pitch. Convert measurements between imperial and metric units in real time. Determine from width and length in meters, centimeters, yards, feet, or inches. Convert pitch to degrees or radians.
Convert units across five categories with instant access to favorites. Switch between measurement systems. Perform calculations for area, volume, and temperature. Save frequently used conversions for quick access.
Measure electromagnetic field strength in microTesla or milliGauss. Display field strength with visual indicators. Check exposure levels in real time. Calibrate and save measurement data. Share results via email or social media.
Calculate metrics such as area, volume, force, velocity, and time. Input piston diameter, pressure, and oil flow to get results for both piston and rod sides. Perform real-time calculations for extraction and retraction forces.
Connect to your car fridge via Bluetooth. View temperature, operating mode, and other status updates. Adjust temperature settings, control power, and switch temperature units through the .
Optimize air systems with unit conversions for pressure, volume, and temperature. Calculate pressure drop, condensate formation, and standard cubic meters according to DIN 1343 and ISO 2533. Determine optimal receiver size and system efficiency.
View current location details including latitude, longitude, altitude, and address in Decimal or DMS format. Track trip data such as distance, speed, and maximum speed. Save location and trip information for later review.
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.
Calculate air properties and track moisture levels
Calculate air properties like temperature, humidity, and dew point. Determine enthalpy and moisture content. Convert between psychrometric units. Visualize air state diagrams. Export data for engineering analysis.
Convert units for distance, area, volume, and . Switch between mm, cm, m, km, in, ft, yd, mi, and their squared or cubed equivalents. Convert grams, kilograms, tonnes, and oil barrels to liters or gallons.
Convert measurements between imperial, metric, and universal systems. Switch between units like dollar, euro, and yen with real-time exchange rates or offline mode. Calculate percentages, fractions, and perform basic arithmetic operations.
Convert instantly with support for 12+ types including real-time currency rates. Switch between quickly. View accurate conversions and exchange rates. Save frequently used conversions for quick access.
Monitor tire pressure and temperature in real time using a low-power Bluetooth system. Receive immediate alerts and sound warnings for abnormalities. Set pressure and temperature units (BAR/PSI, ℃/℉) and thresholds.
Measure sound volume in real time with a meter. Display current sound level with a main indicator and digital dB value. Provide explanations for sound levels. Allow calibration of microphone settings.
Calculate max speed cruise , true airspeed, pounds per hour, and NM/pound based on altitude and outside air temperature. Input values for Piper , M600, M700 Fury, and DLX aircraft. Reference performance tables and figures from specific POH sections.