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.
01Spot
See every aircraft overhead — live
SK4 connects to real-time ADS-B data and shows you everything within range, nearest first. One tap logs the spot, automatically verified against live flight data. Prefer to look up? The AR view overlays the same data onto the sky through your camera.
- Live ADS-B, no guessing
- One tap to log a spot
- Manual entry when you need it
02Log
Four ways to see your log
Every spot lands in your personal log. Read it as a list, plot it on a map, browse your photographs, or look back across the year — the same record, four ways in.
03Collect
Your collection, your rules
Set a goal — every SAS A350, all Scandinavian carriers, your home airport's traffic. Track progress spot by spot. Finish one, start the next.
- Curated challenges
- Collections organised by aircraft type, airline, or route.
- Progress tracking
- See exactly how many spots you need to finish each one.
- ADS-B verified only
- Only spots verified in real time count — keeping your log honest.
Ready to start spotting?
Download SK4 for free and begin building your collection today.
