Alpha NetScope

Alpha NetScope is a Wi-Fi signal meter for Android. It shows the signal strength of the network you are connected to, updated every second, so you can walk through a building and see exactly where coverage drops.

What it does:

• Live signal reading in dBm with a plain rating from Excellent to Dead, plus your link speed, Wi-Fi standard and channel width.
• Session minimum, average and maximum, so you can compare one room against another instead of judging from a single reading.
• A three-minute chart of signal over time, drawn as a continuous line for the connected network and for any nearby networks you select.
• A list of nearby access points per band (2.4, 5 and 6 GHz) showing channel, channel width, Wi-Fi standard, security and BSSID.
• A channel usage graph showing which channels the networks around you sit on and how much they overlap.
• Channel advice for the network you are on, including which of channels 1, 6 or 11 is least crowded on 2.4 GHz.

Who it is for: anyone placing a router or access point, fixing a dead spot at home, checking coverage in a shop, office, hostel or classroom, or working out whether a slow connection is a signal problem or something else.

It runs entirely on your device. There is no account, no internet connection required, and no analytics. Wi-Fi readings stay in memory only while the app is open and are never uploaded. The screen stays on while the app is in the foreground so readings keep coming while you walk around.

Requires Android 7.0 or later. Android requires Location permission before any app can scan for nearby Wi-Fi networks; the connected-signal meter works without it.