WiFi Heatmap & Coverage Map vs Denpa Network Check

There is one spot in your home where everything stops working. The far bedroom. The kitchen table. The corner of the sofa where every call drops. You have probably blamed your provider, then your router, then yourself, and moved the box to a different shelf hoping something would change. WiFi Heatmap ends the guessing. Walk through your home with your iPhone or iPad and watch your rooms appear on the screen. Then watch your WiFi paint itself across them: green where it is strong, and unmistakably red where it dies. Not a number. Not a bar. A place you can walk to and point at. WHAT YOU SEE - Your own home, drawn from your own walls, not a stock diagram - Green where it works, red where it does not, in every room you walk - The exact spot your signal gives up, marked on the floor - Where to put a booster, and how much of the dead space it would rescue - A report you can hand to your landlord or your provider without explaining a thing WHY THIS IS DIFFERENT Other apps hand you a score and leave you to work out what to do with it. A score cannot tell you that the problem is the wall behind your bed. This shows you your home, and where in it the signal runs out. Suddenly the argument at home is over. It is not the laptop. It is not the phone. It is that corner, and now everyone can see it. FREE AND PAID Scanning is free, always. Walk as many rooms as you like and keep the map of your home for nothing. Unlock to see your WiFi painted onto it: every room scored, every dead spot marked, where to move your router, and a report you can share. Pay once with Lifetime, or yearly if you would rather. YOUR HOME STAYS YOURS Every scan and every reading lives only on your iPhone or iPad. There is no account to make, no sign-up, and nothing about your home is ever uploaded. SUBSCRIPTION DETAILS Lifetime is a single payment. It never renews and never expires. Yearly renews automatically each year unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it any time in your Apple Account settings. Prices are shown in the app before you buy and vary by region. Payment is charged to your Apple Account on confirmation of purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://capymakes.github.io/wifi-heatmap-site/privacy.html

Wi-Fi feels slow, but you cannot tell why. Denpa measures what is actually happening, so you can see which side the problem is on. Denpa measures response time, packet loss, download and upload speed, and DNS lookup, and splits your connection into two segments. ■ Two segments, measured separately ・Your device → the first device that responds (your router, or the carrier gateway on a cellular connection) ・The first device → the internet Video stalls. Pages do not open. Experience alone does not tell you whether the cause is inside your home or beyond it. Measuring the two segments separately narrows it down. ■ What it measures ・Response time ・Jitter ・Packet loss ・DNS lookup time ・Download and upload speed (upload requires a server that supports it) ■ It measures only when you tap Nothing is measured until you tap Start diagnostics. There is no background monitoring. ■ Findings come with what to do Issues are listed as Error, Warning, or Information, with why they were flagged and what you can try. ■ Measure how a web page loads Your line is fast, but one page still feels slow. Enter a URL and Denpa loads that page the way a browser does, then reports the load time, the amount transferred, and the speed over that period. The cache is emptied before every run, so measuring the same page twice does not change the conditions. The page stays on screen, and tapping a link in it measures that URL. ■ Save a location, watch it change Name a location and save the result. History shows a chart and a list for each location, and compares the averages. ■ What this app cannot do ・It cannot change your router settings. It narrows down the cause. ・It cannot measure other devices. Everything shown is seen from this iPhone. ・It cannot show signal strength (the bars). Only apps individually approved by Apple can read it. ・It does not make your connection faster. It is a tool for measuring and narrowing down. ■ Privacy ・Results, location names, and notes stay on your device. ・Nothing is sent to the developer or to a third party. There is no analytics, advertising, or tracking. ・Location is never recorded or sent. It is used only to show the name of the Wi-Fi network (SSID), because iOS requires location permission to read it. ・Measuring uses real network traffic. The speed test connects to Cloudflare by default, and you can change the server in Settings. The full list of destinations is in the privacy policy. ■ Requirements iOS 18.0 or later / iPhone, portrait only / Japanese and English Free. No in-app purchases, no ads, no account.