A chemtrail is a term used by many observers to describe the persistent white trails left behind by aircraft in the sky. While officially classified as condensation trails (contrails) formed when hot jet exhaust meets cold atmospheric air, a growing community of concerned citizens questions whether all trails can be explained this simply. ChemTracker lets you investigate for yourself by showing you exactly which aircraft are leaving trails, at what altitude, and under what atmospheric conditions — so you can draw your own conclusions based on real data.

How does ChemTracker work?

ChemTracker combines real-time ADS-B flight data with atmospheric science to show you every aircraft in your area. It uses your location, live weather data including humidity and temperature at cruising altitude, and the known science of contrail formation to predict which planes are likely producing visible trails. You can point your phone at the sky and see overlaid flight information in real time.

Can I track chemtrails in real-time?

Yes. ChemTracker provides real-time tracking of all aircraft in your vicinity and highlights which ones are currently producing visible trails. Using live ADS-B transponder data and atmospheric readings, the app updates continuously so you can monitor exactly what is happening in the sky above your location at any moment. You can also set up alerts to be notified when trail-producing aircraft enter your area.

What is the difference between a chemtrail and a contrail?

A contrail (condensation trail) is the official explanation for the white lines left by aircraft — formed when water vapor in jet exhaust freezes in cold, humid air at high altitudes. The term chemtrail is used by researchers and observers who believe some trails may contain additional substances beyond normal water vapor, noting that some trails persist and spread for hours while others disappear quickly. ChemTracker helps you study these differences by showing atmospheric conditions, aircraft identity, altitude, and trail persistence predictions for every flight overhead.

March 31, 2026 · ChemTracker Team

ChemTracker Is Live on Product Hunt

Today is the day. ChemTracker is live on Product Hunt — and we would love your support. Whether you are a curious observer, an atmospheric science enthusiast, or someone who just wants to know what aircraft are doing above them, today is the day to try it.

🚀

We're Live on Product Hunt Today

If ChemTracker helps you understand what is happening in the sky above you, please take 30 seconds to upvote us on Product Hunt. It genuinely helps.

Upvote ChemTracker on Product Hunt →

What We Built

ChemTracker is a real-time aircraft trail detection app. It answers the question millions of people ask every time they look up: which of those aircraft are leaving visible trails, and why?

The answer requires three data streams working together: live ADS-B flight positions, real-time atmospheric data at cruising altitude, and the Schmidt-Appleman criterion — the thermodynamic model used by atmospheric scientists to predict contrail formation.

The result is a live map where every aircraft is colour-coded by trail likelihood, a sky scanner you can point at any aircraft to get instant atmospheric data, and a 48-hour contrail forecast showing when trail activity will be high or low above your location.

The Story Behind ChemTracker

The chemtrail question has millions of people around the world asking genuine questions about what they see in the sky. For too long, the response has been dismissal rather than data. We wanted to change that.

The atmospheric science to answer these questions is well established. The data is available — ADS-B flight data, weather model outputs, published thermodynamic models. What was missing was a tool that combined all of it in real time, for anyone, on any device, pointed at the specific aircraft they were watching.

CCC Impact BV — the company behind ChemTracker — was founded on the belief that better access to real data leads to better conversations. We are not a conspiracy theory app and we are not a debunking platform. We are a data tool. We give you the atmospheric conditions for every aircraft above you, and let you form your own conclusions.

We have been building and testing ChemTracker for months. Today, we are ready for the world.

What's Available Today

Live Trail Map

Every aircraft above you, colour-coded by trail probability. Updated every 5–15 seconds.

Sky Scanner

Point your phone at any aircraft in the sky to see its flight details and trail prediction.

Contrail Forecast

48-hour prediction of trail activity above your location, updated hourly.

Trail Alerts

Push notifications when high trail activity is detected above your location.

Atmospheric Data

Real-time temperature, humidity, and pressure at 8 altitude levels.

14-Day Free Trial

Full access, no credit card required. See everything the app offers before deciding.

What's Coming Next

Launch day is the beginning, not the end. Here is what we are building next:

Community reports: User-submitted trail observations linked to specific flights, creating a community-sourced validation layer for our predictions.
Historical analysis: Compare trail activity across weeks, months, and years for your location with full atmospheric data context.
Improved humidity data: Integrating satellite-derived humidity at altitude to improve prediction accuracy, particularly for the challenging 30–70% probability borderline cases.
Mobile apps: Native iOS and Android apps for a smoother sky scanner experience and better push notification support.

How to Support the Launch

The best things you can do today:

Upvote us on Product Hunt — every upvote improves our ranking and helps us reach more people who are asking these questions.
Start a free trial — try the app today, point your phone at the sky, and see if our predictions match what you observe. Your real-world feedback matters.
Share with someone who looks up: If you know someone who pays attention to aircraft trails and asks questions about them, send them the link. This app was built for them.