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 noise levels using a precise . Record levels and view real-time data. Set thresholds and receive alerts when limits are exceeded. Export measurements and share results.
Plan and track technical dives with support for open circuit and closed circuit rebreathers. Calculate gas consumption, OTUs, and CNS. Adjust ascent rates, stop intervals, and RMV/MOR per dive. Include altitude, nitrox, and trimix configurations.
Track and capture moving targets with real-time ballistic adjustments for density altitude, Coriolis, cant, and slope. Calibrate settings with a tap. Record video and photos. Sync with a heads-up display for precision shooting up to 5000 yards.
Calculate feet using length, width, and thickness in feet, inches, centimeters, meters, or yards. Input quantity for total feet. Convert between imperial and metric units in real time.
Convert ingredients between mass and volume units, switch between metric and customary measurements, and convert temperatures between Celsius and Fahrenheit. Store and view past . Switch between dark mode and eight color themes.
Measure illuminance, color temperature, PPFD, PAR, DLI, and luminous flux in real time. Access a library of sources for accurate calculations. Use the built-in calculator for precise results. No additional equipment required.
Detect cameras and microphones by scanning Bluetooth devices and Wi-Fi networks. Identify suspicious lenses using magnetometer data. Lock and disable detected devices to secure personal space.
The app sizes high pressure gas piping systems. Users input gas flow, upstream pressure, and pipe properties to determine pipe diameters, velocity, and equivalent length.
Convert distances between kilometres, metres, miles, yards, feet, and inches. Switch units instantly. Input values manually or via copy-paste. Display results in selected unit.
Track skiing performance with speed, altitude, slope, and distance data. Create and organize trips to store runs and view trip statistics. Access photos taken during the session. Customize screen layouts to focus on relevant data.
Measure current and track elevation changes. Save named locations with icons for easy navigation. Syncs across iPhone, iPad, and Apple Watch. No ads and free to use.
1. Convert units, currencies, and timezones instantly by typing a number and a few letters. Use a dedicated numpad to switch keyboards. Learn conversion patterns over time. Fetch current currency rates and display approximate values when needed.
Measure direction and elevation with a digital compass and inclinometer. Access real-time GPS and map data. Navigate using location-based routes. Share coordinates and track movement history.
Track flights across Casual, Training, and Expert servers. View flight plans with color-coded SIDs, STARs, Approaches, and Tracks. Display flight tracks with altitude-based color coding. Look up user statistics.
Monitor the International Space Station with real-time tracking on an interactive world map. View current altitude, velocity, and orbital period. Access precise latitude and longitude coordinates. Choose between standard and satellite map views.
Calculate electrical circuit values by entering two known variables (current, resistance, voltage, or power). Adjust units dynamically for accurate results. Display total resistance and power in the circuit.
Convert units between feet and inches, miles and kilometers, Celsius and Fahrenheit. Swap units with a button. Access live currency updates for major currencies. View 15 categories with multiple units. Perform calculations with a simple interface.
Convert inches to millimeters with a simple interface. Enter measurements and receive instant conversions. Supports both imperial and metric units. Save frequently used conversions for quick access.