Box the Wind.

Box the Wind

The pilot's map for competition ballooning.

See the day's tasks, your drift and closest approach, live crew tracking, and the contest area — on online or downloaded offline maps, so it works even where there's no signal.

Download on the App Store

Free. No ads, no subscriptions, no accounts. We don't track you, and we don't collect or sell your data — your position only ever goes to the crew you share a code with.

Competition map with the 1 km grid, prohibited zones, and the active target In-flight navigation: target line, wind drift, and closest approach The wind cone and AGL altitude bar in flight

Built for the task

Offline maps

Street and aerial imagery downloaded in-app, so the map works with no signal aloft.

Live crew tracking

Your position flows pilot → private relay → crew — and the crew's own location shows too, kept separate from the balloon. Never a frozen balloon shown as live. The crew device is a full map, not a viewer: tasks, zones, warnings, and navigation all work.

Competition tasks

Import a WatchMeFly task sheet, edit it, and pick the active target with a tap.

Shared tasks

The pilot pushes the day's task list to the crew; the crew accepts with a tap — no re-importing.

Declare a goal

Key a 4/4 goal in flight with a live ghost pin, validated against the contest area.

Drift & approach

Bearing, distance, drift line, and closest-approach miss — always glanceable.

Tools

Measure a distance on the map, see the legs between every task target, open the wind cone, and switch on practice drops — one wrench menu beside the gear.

Target tuning

Long-press a target to nudge it into place, and run two wind lines through it at any bearing.

Crew directions

One tap from the crew map into Apple or Google Maps, driving to the active target.

Practice drops

Practice mode records electronic marker drops and scores the 2D/3D distance to the target.

Flight recording

Record every flight to GPX, then replay, rename, share, or import.

Wind cone

An altitude hodograph of your measured drift plus a forecast sounding, on a scale bar marking your height, the cone edges, and every altitude whose drift heads at the target.