PlainWiFi: Channel Analyzer

PlainWiFi shows you what's happening on the Wi-Fi around you, and tells you in plain English what to do about it. It opens straight to your networks: no ads, no videos to sit through, no sign-up.

WHAT IT DOES
• Lists every nearby network with signal strength, channel, band, channel width, security and Wi-Fi generation (Wi-Fi 4, 5, 6, 6E, 7)
• Channel graph for 2.4 GHz, 5 GHz and 6 GHz that draws 40, 80 and 160 MHz networks at their real width
• Recommends the least crowded channel and tells you whether switching your router is worth it ("Your network is on channel 6, shared with 3 others. Try channel 11.")
• Flags DFS channels and open or WEP networks
• Live signal meter for your connection, updated every second, with a 60-second graph and a quality label that says what the number means
• Room walk: measure the signal in each room and see your dead zones ranked weakest first
• Keeps the last scan on screen, so results don't vanish before you can read them
• Honest about Android's scan limit: if Android won't allow another scan yet, PlainWiFi shows how old the results are instead of a blank list
• Light and dark mode

PRIVATE BY DESIGN
PlainWiFi has no internet permission, so nothing it sees can leave your phone unless you export it yourself. There are no ads, no analytics, no tracking and no account. Android only shows Wi-Fi scans to apps with location access, so PlainWiFi asks for it, after explaining why, and never reads or stores your position. The signal meter works without any permission.

PRO: ONE-TIME UNLOCK
Everything above is free. A single, optional purchase (no subscription) adds:
• Unlimited rooms per walk (the free version measures 3)
• Saved walks, to compare before and after moving the router
• CSV export of scans and walks

PlainWiFi does not show saved Wi-Fi passwords, does not "boost" your Wi-Fi and does not run speed tests. It reads what Android reports and explains it.

Recent changes:
First release: nearby networks, channel graph with plain-English advice, live signal meter and room-by-room dead-zone walk.