Use APKPure App
Get World Fog Extra old version APK for Android
Record footsteps. Make your world map.
Recorded more points than WolrdFog ^^, so use more memory -.-
Date flag：reduce map to see
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Use the GPS function to record footsteps.
Use GoogleMap to display map (Please install GoogleMap).
The recording file path is "/DCIM/WorldFogEx/" or "/mnt/sdcard/DCIM/WorldFogEx/".
Each record grid size is 200m x 200m.
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After installation, run once please. Then exit the program. The background service will be permanent (6M).The service will silently record through the place.