If you are looking for a comprehensive mobile network and Wi-Fi monitoring app with measurement and diagnostic tools, then you should check out Network Cell Info v6.1.32 [Patched] APK [Latest]. This app is one of the best Android cellular network monitoring apps, providing separate VU-like signal-meter gauges for the serving (registered) cell, as well as for neighbor cells.

Network Cell Info covers all wireless cellular networks including LTE, HSPA+, HSPA, WCDMA, EDGE, GSM, CDMA, EVDO. It can help you troubleshoot your reception and connectivity problems while