This is important because both signal strength and network speed play important roles in the quality of voice calls and data connections . Company maps of wireless networks can be inaccurate or lacking detail . Map designers have turned to cloud data . Open Signal maps has an app for Android . RootMetrics has an app for iOS ; Android and Blackberry versions exist .
Company maps of wireless networks can be inaccurate or lacking detail . Map designers have turned to cloud data . Open Signal maps has an app for Android . RootMetrics has an app for iOS ; Android and Blackberry versions exist .