AeroWeather Lite vs AutoDens

*** AeroWeather: for pilots, aviation enthusiasts, and everyone who is serious about the weather! *** Current and precise weather conditions (METAR) and forecasts (TAF). AeroWeather Lite provides quick and intuitive access to METAR and TAF for airports worldwide. Data can be shown in its original (raw) format or as fully decoded and easy understandable texts. AeroWeather Lite is helpful for weather preflight-briefings, but also to just get very precise weather. All weather data is cached for offline access. There are many settings for units and format of METAR/TAF available. The app features a built-in airport database, which includes basic airport data like sunrise/sunset, twilight times, timezones etc. AeroWeather Lite offers built-in groups for nearby stations, today widget (pre iOS 14), and earthquakes. Depending on your needs, groups can be shown or hidden in the main list view. METAR alert notifications** is an helpful feature to stay up-to-date. Define multiple alerts for each station with the following criteria: flight rule (US NOAA), wind speed, temperature, pressure, present weather, visibility, and ceiling (BKN and OVC). Notifications will be sent to your device if the criteria is met (e.g., when wind is greater/equal 10 kts, flight rule becomes IFR). Dedicated METAR/TAF** access is optionally available. METAR/TAF data comes primarily from a certified ANSP (air navigation service provider) and is provided reliably and fast from our dedicated, redundant servers (indicated by blue checkmark underneath METAR/TAF). Please consult our web-site for a full description of all features. In order to keep AeroWeather Lite free we added a small ad banner at the bottom of the screen. Consider getting AeroWeather Pro, subscribe the additional features**, or remove the ad banner through one-time unlock* to have an ad-free app. * Additional functionality which needs to be unlocked (one-time purchase). These purchases are not transferable between Lite, Pro, and Mac. ** SUBSCRIPTIONS Additional features which generate recurring operation costs for us will be offered within a subscription. The following features are enabled while 'First' subscription is active: - Dedicated METAR/TAF data source - Meteograms - Alert push notifications - D-ATIS (bigger US airports only) - Area Forecast Discussions (currently US only) - RVR data (US and Germany only) - Home Screen Widgets for METAR, Plot, Meteogram - Imagery and Charts (requires 'Captain' subscription) - SIGMETs (requires 'Captain' subscription) - METAR/TAF from ADS-B receiver thru GDL 90 protocol (requires 'Captain' subscription) When using AeroWeather Lite also the following features are enabled: - Remove ad banner The subscription varies in time periods (1 month, 12 months). The subscription is valid in both AeroWeather Lite and Pro. Cross app subscription support is only available if iCloud (with the same Apple ID) is enabled. Previously purchased unlock features are not affected and will work with or without subscription. Auto-renewal may be turned off at any time by going to your account settings. A payment will be charged to your iTunes account at the end of the free trial period. Your iTunes account will be charged for renewal within 24 hours prior to the end of the current period. No commitment - you can cancel any time. Pleas read the full “Subscription Terms of Use” at: https://www.lakehorn.com/subscription-terms-of-use/

AutoDens does all the air density calculation at just one single touch. Temperature, air pressure and humidity have affects to the performance of engines and aircrafts. AutoDens helps to get all the required parameters automaticly via the internet and calculates the current air density, relative humidity and air pressure. It also shows your geographic position, current temperature, dewpoint, physical elevation and the barometric pressure (QNH). Features: - automatic, airport and offline (manual) mode - getting current location - loading meteo-data (METAR) from the nearest airport - calculating meteo-values for the current geo position (using up to 4 different airports nearby) - shows METAR of nearest airport in raw format - calculates density altitude, pressure altitude, relative humidity, air density and QFE - choose your preferred units (celsius / fahrenheit, hectopascal/inches of mercury, feet/meters) - database with more than 40'000 airports worldwide AutoDens might help you as a efficient tool for calculating air density. But since it relays on a working infrastructure, it might not produce accurate results in all situations (internet connection could fail or some odd weather conditions might not act as it is calculated in ISA standard-atmoshpere). Do not use this as your single source for flight preparation.