Showing 1–20 of 1,000 ranked alternatives.
Optobyte AG
Calculate air density in real time
Calculates air density, relative humidity, and air pressure automatically. Displays geographic position, temperature, dewpoint, elevation, and barometric pressure. Supports airport and manual input modes.
Boluga Limited
Track speed, altitude, and barometric pressure
Provides GPS altitude and pressure altitude readings. Displays speed in kph, mph, and knots. Measures barometric pressure in multiple units. Tracks acceleration in G forces. Shows location, magnetic, and true heading.
Alan Mrvica
Swap currency with a single button press
Convert across 12 categories including area, currency, data, distance, temperature, and time. Swap by pressing a button on the keypad. View live currency updates for 155 world currencies every 15 minutes. Supports iPad Split View.
oWorld Software
Convert currencies, weights, and units instantly
Convert units for currency, weight, length, volume, and temperature. Input values and select units for instant . Access real-time currency rates. Share results or copy to clipboard for quick use.
Mapnitude Company Limited
View , convert formats, manage locations
View and convert geographic across multiple formats and datums. Manage locations with an intuitive interface. Display current location at the intersection of two grey lines. Export in various global systems.
Armchair Engineering
Convert temperatures between Celsius, Fahrenheit, and Kelvin
Convert temperatures between Celsius, Fahrenheit, and Kelvin. Input values and see instant conversions. Remove ads with a one-time in- purchase.
Applicate Ltd
Save notes and track airport data
Access airport information including NOTAM, SNOWTAM, METAR, and TAF reports. Search by city, name, or identifier. Save personal notes for frequently visited . View data on iPad and iPhone. Includes a database of over 27,000 .
Oliver Puetz
Track weather and flight reports in real
Access real-time weather data including METARs, TAFs, and NOTAMs. View weather radar and decoded reports for quick briefings. Set up widgets and watch complications for updates. Get live TAF summaries for immediate forecast insights.
monkeyLabs inc.
Convert currencies and track rates
Convert currencies with real-time exchange rates for 150+ currencies. Auto-detect local currency and recognize 240+ countries. Save favorite currencies for quick access. Calculate tips and discounts. Track travel expenses and set budget limits.
Pavel Ahafonau
Track routes, find waypoints, and navigate offline
Navigate outdoors with offline GPS maps and real-time augmented reality. Track waypoints and custom locations. Use a gyrocompass, speedometer, altimeter, and inclinometer. Find celestial bodies and measure angles.
Rome Rock LLC
Convert units between metric and imperial systems
Convert units between metric and imperial systems including area, distance, speed, temperature, volume, time, weight, energy, and power. Calculate area, speed, distance, and volume with supported units. Switch between units quickly and accurately.
YOYASOFT LLC
Measure lengths with your phone
Measure lengths with a virtual ruler. Use protractor, plumb line, and spirit level for angles and alignment. Check elevation, air pressure, and location. Monitor decibels. Convert ordinal dates to calendar dates.
Ievgenii Lebid
Convert and currencies instantly
Convert and currencies with customizable conversion lists. Switch between automatically for multiple items. Support currency rates for over 160 countries and 24 conversion types including cooking, fuel consumption, and net.
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