A balloon goes where the wind takes it. With Lachez, you'll see where.
A live map of balloons, altitudes, wind and airspaces – for pilots in the basket, crews in cars, and everyone on the ground looking up.
Get started in half a minute
- Choose who you are: pilot, crew, or spectator. No accounts, no registration.
- Select an event or set up your own private space and invite your crew with a code.
- Press Start. The rest runs by itself – the app detects take-off and landing.
What Lachez can do
Pilot: the sky in the palm of your hand
- You know what's ahead of you. Airspaces and power lines directly on the map, a side view of the route ahead of the basket, and wind by altitude.
- From the map straight to the source. Open the AIP of the country directly from the airspace card. For Czech airspaces: the VFR Manual, today's AUP and NOTAMs. For Czech TSA/TRA you see today's activation from the AUP. Airfields with runways and frequencies are one tap away.
- Your crew knows where to go. The car heads where the wind is taking you – even while you're still high up.
- Where the wind may take you. Projected flight direction 5–40 minutes ahead, based on the balloon's movement so far.
- A logbook that writes itself. The app detects take-off and landing; if it gets it wrong, you can easily adjust the time.
- A memory of every flight. An altitude profile over terrain and a flight card with route, stats and a photo.
- Targets and routes from a file. Load targets, routes and boundaries from GPX or KML (up to 6 files at once) and Lachez guides you. You can also add a flight from a file to your history later.
- In your pocket, screen off. Location sharing keeps running in the background. Turning it on and off is fully in your hands.
- Your own private space. Set it up in the app without an organizer and manage up to three balloons.
Crew: no more guessing by the roadside
- All balloons in one place. A map of all tracked balloons in a single view.
- Navigation with one tap. Route to the balloon you're chasing right now.
- Quick team connection. The pilot invites you with a code or a link.
Passengers and family: an experience to share
- Live map in the browser. Follow the flight via a link from the pilot – no installation, any browser. Flights in a private space are visible only to those you send the link to.
- A ready-made memory. After landing you get a flight card with route, altitude and a photo – ready to share with friends.
Organizers: the whole fiesta under control
- Everything on one map. Every balloon in sight, events secured by a pilot code.
- Competition scoring. The app scores Fly-in (closest approach to target) and Longest distance (Gordon Bennett), and supports Hare and Hounds – one balloon flies ahead, the others chase it by its position on the map.
What it looks like inside
Why Lachez was created
Lachez is developed by Colegio Solutions s.r.o. Behind the app is balloon pilot and software developer Petr Vítek, who makes sure it serves balloonists the way they actually need. It is designed from the perspective of both pilot and crew and grows with what organizers and the people in the baskets tell us.
Lachez was tuned in live operation at real events – Balonové nebe Hradec Králové 2026 and Fiesta Fabrika 2026 – where balloonists welcomed it with enthusiasm.
Help us push Lachez further. Petr flies mostly in Central Europe. To make Lachez a reliable partner anywhere in the world, we welcome advice and feedback on how it works in other airspaces and under other rules. Write to us at info@lachez.eu – every detail matters to us.
Important
For information only — not a substitute for AIP or NOTAM. Data on airspaces, power lines, altitude, QNH, wind, takeoff and landing may be incomplete or inaccurate. An empty area on the map does not mean the airspace is free. Do not rely on Lachez as your only source of information for planning or flying. The pilot remains responsible for the flight and for checking the data.