500 - 1,000 downloads

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+ By Alexandre Lissy

This applications allows to track GSM and WiFi network coverage by measuring signal strength and latency (ping against Client and server part are released under Apache 2.0 License, and map can be seen at

Please use carefully, it's far from being perfect.

About permissions:
android.permission.INTERNET : used to send ping, open http connection (measures, upload).
android.permission.ACCESS_NETWORK_STATE : used to get network status.
android.permission.ACCESS_WIFI_STATE : if wifi is enabled, we will collect SSIDs in range.

All three above are used to be able to locate the measure.

android.permission.READ_PHONE_STATE : used to get gsm signal power.
android.permission.WRITE_EXTERNAL_STORAGE : used to write produced data

Tags: .permission.access_fine_location.

Recently changed in this version

Lots of improvements: signal detection heuristic, battery status tracking, new API, better handling with LTE

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