Build your personal
flight collection
SK4 turns every aircraft overhead into a discovery. Spot flights in real time, verify them with live ADS-B data, and grow a collection that's entirely your own.
See every aircraft overhead — live
SK4 connects to real-time ADS-B data and shows you every aircraft within range. One tap to log your spot, automatically verified against live flight data.
Point at the sky. Identify everything.
SK4's augmented reality view overlays live aircraft data directly onto the real sky through your camera — registration, altitude, airline, and distance. Tap any aircraft to spot it instantly.
Your collection,
your rules
Set a goal — every A380 operator, all Scandinavian airlines, your home airport's traffic. Track progress spot by spot. Finish one, start the next.
Your stats. Your story.
Every spot builds your personal record. Track total spots, unique aircraft, top aircraft types and favourite airlines — all in one place. Share your QR code with fellow spotters.
Ready to start spotting?
Download SK4 for free and begin building your personal flight collection today.
