Point. Identify. Understand.
Discover what's flying overhead. Learn why contrails form. Get answers backed by real flight data and atmospheric science.
United Airlines
SFO → JFK
38,000 ft
Why the contrail?
At -56°C and 45% humidity, water vapor from exhaust freezes instantly into ice crystals.
Everything you need to explore the sky
Combining augmented reality, live flight tracking, and atmospheric science into one intuitive experience.
Instant Aircraft ID
Point your camera at any aircraft and get real-time identification including airline, flight number, aircraft type, and route.
Atmospheric Context
See temperature, humidity, and pressure at flight altitude. Understand exactly why contrails form—or don't—in current conditions.
Live Flight Data
Connected to global flight tracking networks. Every identification is matched against actual flights overhead, not guesswork.
Science Modules
Bite-sized lessons on contrail formation, cloud types, and atmospheric science. Learn at your own pace with clear visuals.
Privacy First
Minimal data collection. Location used only for flight matching. No tracking, no ads, no selling your information.
Offline Learning
Educational content available offline. Review saved identifications and continue learning without an internet connection.
From curiosity to understanding
Four simple steps to identify any aircraft and learn the science behind contrails.
Open & Point
Launch the app and point your phone at any aircraft you see in the sky. The AR camera uses your GPS and compass to know exactly where you're looking.
Auto-Identify
The app matches your view angle with live flight data to identify the aircraft. Within seconds, you'll see the airline, flight number, and route.
Learn Why
Get a clear explanation of contrail formation based on real atmospheric data at that altitude—temperature, humidity, and air pressure.
Save & Explore
Save interesting sightings to your history. Dive deeper with learning modules that explain the science behind what you're seeing.
UA 1547
United Airlines
Atmospheric Conditions
Why the contrail?
At 38,000 ft, the air is extremely cold (-56°C). When hot, humid exhaust from the engines meets this frigid air, water vapor condenses and freezes instantly into ice crystals—creating the visible trail.
Contrails are just clouds
made by aircraft
When jet engines burn fuel, they produce water vapor and heat. At high altitudes where temperatures drop below -40°C, this vapor instantly freezes into ice crystals—the same process that forms natural cirrus clouds.
Temperature
Below -40°C, water vapor freezes on contact with air
Humidity
Higher humidity = longer-lasting, spreading contrails
Wind Shear
Upper-level winds stretch and disperse the ice crystals
Persistence
Some last seconds, others persist for hours—both are normal
Bite-sized science lessons
Short, visual modules designed for curious minds. No jargon, no lectures—just clear explanations backed by atmospheric science.
Contrails 101
What are contrails? How do they form? A beginner-friendly introduction to the science.
Why Some Last Longer
Understand why contrails sometimes disappear quickly and other times spread across the sky.
Common Misconceptions
Calm, factual responses to frequently asked questions about contrails and aircraft.
Quick Fact Checks
Common claims vs. documented science
"Contrails didn't exist before the 1990s"
Contrails have been documented since WWI. The first scientific study was published in 1919.
"Real contrails disappear quickly"
Persistence depends on humidity. In humid air, contrails can last hours—this is normal physics.
"Grid patterns prove spraying"
Aircraft follow established flight routes. Crossing paths create grid patterns naturally.
All facts sourced from peer-reviewed atmospheric science research
Your privacy matters
We built this app to educate, not to collect data. Here's exactly what we do—and don't do—with your information.
Location: Only When Needed
GPS is used solely to match your view with overhead flights. Location data is processed locally and never stored on our servers.
No Tracking
We don't track your browsing, build advertising profiles, or sell your data. Period.
You Control Your Data
Delete your saved identifications anytime. When you delete, it's gone—no hidden backups.
Encrypted by Default
All data transmission uses industry-standard encryption. Your information stays private.
Transparent Data Sources
Every piece of information in this app comes from verifiable, public sources:
ADS-B Exchange
Flight tracking
OpenSky Network
Aircraft data
NOAA/NWS
Weather data
FAA/ICAO
Flight routes
No proprietary algorithms, no hidden data. You can verify any flight identification using these same public sources.