Filling Bird

Walking & ground travel · iPhone & iPad

Fill your map as you travel.

Turn walks, runs, and ground journeys into a map of places you have covered. Compare Walking and Transportation, keep places worth revisiting, and grow your progress alone or with a team.

A closer look

Two views of your travels, with saved places, visited areas, badges, and optional team sharing.

See every ground journey

Walking counts step-confirmed walks and runs. Transportation also records ground travel by car, train, or bicycle. Eligible GPS gaps fill with estimated routes you can review or remove. Switching views keeps the same recording session running.

Recover a missing walk

Review recorded gaps, trace the path you actually walked, and preview new hexagons before saving. Eligible corrections require recorded movement evidence and must be saved within 24 hours.

Keep places worth revisiting

Save a park, café, or viewpoint with notes and photos. Search Japan with combined OpenPOI and OpenStreetMap results, then keep a place on your map.

Find your next milestone

Review your daily activity, visited areas, and territory badges in each mode. Share selected territory with a team and compare progress in mode-specific rankings.

Your progress, in the picture.

Map coverage, territory, and badges give each journey a visible result.

Keep the manual close

Start with a short first-use guide, then return to individual tasks whenever you need them.

Read the manual →

Before you begin

Location and Motion & Fitness access support walking detection. Background recording depends on your location settings. Camera and photo access are used when you add pictures; optional sync uses NSG ID.

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