Visibility Tool vs WindLimit

Accurately determine local visibility to ensure your flight is safe and legal by turning your mobile phone into a weather sensor. The simple point-and-click capability enables anyone globally to determine local visibility, even in flight. The technology works by pointing the mobile phone camera towards the horizon and then angling up until the view is unobstructed by buildings, trees or other foreground objects. Users take a photo in any direction they want and the technology responds with a visibility metric ranging from 1-10+ miles (1.6-16+ kilometers). Visibility Tool software is downloaded on your device. It is not cloud-based and does not require cell service. As such, drone operations can be flown weather compliantly within the national airspace from your backyard to the remotest of destinations. Similarly, pilots can use the tool at altitude where cell service is not available. More information is available at https://lowaltitudeweathernetwork.com/ Visibility tool applications include: - UAS and drone operations (Instantaneous FAA part 107.51 regulatory visibility compliance for every UAS operation) - General aviation (As part of your preflight, obtain instantaneous FAR 14 CFR section 91.155 regulatory visibility compliance for your VFR operation) - First responder and Medevac flights (This tool allows First Responders to instantly determine if Medevac can be safely initiated or alternatively, ground transport is necessary because of poor visibility) - Other use cases: Ground transportation, Maritime operations, Athletic and outdoor activities, Pulmonary and health monitoring Accurate visibility is important because low visibility is a leading cause of weather-related accidents/fatalities in General Aviation, Helicopter/Medevac, UAS and ground transportation.

WindLimit gives pilots a fast, clear answer to one question before every takeoff and landing: is this wind within limits? Enter your runway, wind direction, and speed, or pull live METAR for any of 12,700+ U.S. airports, and WindLimit instantly computes your headwind and crosswind components, checks them against your aircraft's limits, and flags an exceedance the moment you're outside them. FEATURES • Live METAR for public, private, and military airports nationwide, with automatic magnetic variation correction • Every runway end's crosswind and head/tailwind side by side, with the best end badged • Manual and ATIS entry when no live weather feed is available • Runway-aware exceedance alerts, keyed to the runway you actually pick • Set your own max demonstrated crosswind and personal minimums per aircraft • Clean, glanceable compass display with drag-to-set wind input • Light and dark themes WindLimit is a free, ad-supported informational tool. A one-time in-app purchase removes ads and unlocks: • Multiple saved aircraft profiles • Nearby airports with live wind, best runway, crosswind, and a within-limits read for each • Favorite and recently used airports IMPORTANT WindLimit is an informational aid only. It is not a source of official weather, performance, or limitation data, and must not be used as the sole basis for any operational decision. Always verify winds, runway conditions, and crosswind limitations against official sources: current ATIS/METAR, NOTAMs, and your aircraft manufacturer's or operator's current manuals and limitations. The pilot in command remains solely responsible for every operational decision. Designed by pilots.