I get your struggle, having a reliable WiFi is essential nowadays. Based on my experience, here are a couple of solid recommendations.
First off, you can’t go wrong with Netspot WiFi Analyzer for Android. This app offers detailed info about WiFi signals, signal strength, and channel interference. It lets you visualize your network environment with ease, making it simpler to figure out where your dead zones are. It definitely saved me a lot of guesswork when I was experiencing connectivity issues at home.
Another good one is Wi-Fi Analyzer by Farproc. It's straightforward and gives you a clear idea where your signal strength is the best. You can see channel ratings which help you pick the least crowded one.
If you’re looking for something more detailed, then Wifi Analyzer by Netcut is another good choice. Similar to Netspot, it provides in-depth analysis of your WiFi network, helping you get the most of your connection. It even offers network speed testing.
I found Netspot especially handy because it’s super user-friendly and offers extra features like network discovery and detailed signal heatmaps. It’s a bit more advanced compared to others.
Good luck troubleshooting your WiFi! It can be a hassle, but having the right tools makes all the difference.