Vayu tracks a flight by number and combines live ADS-B position data with schedule information. The app shows departure and arrival airports, an aircraft's position on an interactive map, an ETA countdown, distance covered, and delay status. A Dynamic Island view keeps route and arrival updates visible without reopening the app. The developer describes flight positions refreshing about every 30 seconds and says gate and terminal details appear when available. Vayu is intentionally narrow: the listing says there are no ads, premium tier, free trial, or account requirement. It is a flight-status companion, not an airline booking or check-in service; data availability can vary and should be confirmed with the airline or airport before traveling. The US App Store lists a free download, and the developer says the app does not sell a paid upgrade.
