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.

The whole flight on the competition map: flown track, every task target in order, prohibited zones and the contest boundary The day's task sheet, imported and editable, with each task's marker and scoring deadline Setting a wind line: drag the dial or step to the exact degree The wind cone: measured drift by altitude over a forecast sounding, with the AGL scale bar

Built for the task

Offline maps

The map streams over the network as you fly. Download street and aerial imagery in-app and it keeps working with no signal.

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. Long-press the map to add a task right where you want it, or append a target to one you already have.

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 it with a transport bar — play, pause, scrub, and speed — or rename, share, and 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.

Your zones, your colors

Import your regions and roads from KML, PLT, or GPX. A styled file sorts itself by the colors already in it — red, yellow, and blue drive the warnings, and any other color draws as it is and drives nothing.

Your own wind profile

Bring in a sonde or windreader file — OTM, Ozi, or Paddy Cake — in place of the forecast. Or fetch model soundings on their own native levels, far denser near the ground.