DNS Resolver
Open-source DNS sinkhole with live query logs and per-domain rules
WiFi analyzer app picks for Android: network tools compared
A WiFi analyzer app sounds like one job, but the Network Tools category on Android covers several. Most apps here show no ads, so price and ads are a weak way to tell them apart.
Read more
The better question is what the app measures. WiFi Analyzer (open-source) graphs nearby access points and channel strength, and Google Play shows over 10 million installs with a 4.1 rating. Network Scanner lists devices on your local network and checks their open ports. PCAPdroid watches which apps make connections, and Network Survey logs cellular, Wi-Fi, Bluetooth and GNSS data.
Licensing is the second clue. Many picks below publish source code under licenses such as GPL-3.0 or Apache-2.0. This page leaves out tools meant to break into other people's networks. It sticks to analysis, monitoring and inventory of networks you use.
Apps in this category
Network Scanner
Free, ad-free open-source LAN and port scanner for Android 8.0 and up
Network Survey
Open-source Android survey tool for cell, Wi-Fi, Bluetooth and GNSS logs
PCAPdroid
Free open-source Android traffic monitor and PCAP dumper, no root needed
Rethink
Free open-source Android firewall with WireGuard and DNS controls
RKNHardering
Open-source Android check that runs nine VPN and proxy detection modules
SignalSense
Free open-source Android app that alerts you when 5G drops to 4G
WiFi Widget
Open-source, ad-free widget that shows your WiFi details on the home screen
WiFi Analyzer (open-source)
Free, ad-free Wi-Fi channel and signal grapher, open source, just 2 MB
Fing
Free Android Wi-Fi scanner with device ID, speed tests and no ads
WiFiman
Free, ad-free WiFi analyzer and subnet scanner with UniFi tools from Ubiquiti
WiFi Analyzer
Android Wi-Fi scanner that picks a clear channel and lists network devices
__NAME__
__LINE__
Top 5 picks
WiFi Analyzer (open-source)
This is the closest match to the search term. It identifies nearby access points, graphs channel signal strength, and tracks one access point's signal over time. It also rates channels so you can spot a crowded one. Version 3.3.1 was updated July 3, 2026, takes 2 MB, and shows no ads. Google Play lists a 4.1 rating.
Network Scanner
Use it to see who is on your network. It finds devices through ping sweep, ARP, mDNS, SSDP and NetBIOS, then reports hostname, vendor and device type. The port scanner covers common ports or all 65,535. The MAC vendor database is bundled offline. Version 1.1.11 is 3.3 MB, has no ads, and uses GPL-3.0-only.
Network Survey
A heavier tool for radio work. It records serving and neighbor cells for GSM, CDMA, UMTS, LTE and 5G NR, plus Wi-Fi access points with channel, security and 802.11 standard. Data can be logged, streamed or uploaded. Version 2.0 is 69.2 MB, the largest of the five, and licensed under Apache-2.0. It has no ads.
PCAPdroid
PCAPdroid shows which apps are making connections and how much data each sent and received. It works without root by simulating a VPN, and it processes data locally on the device. It can export PCAP dumps and extract hosts from DNS, TLS and HTTP. Version 2.0.2 is 16.7 MB, GPL-3.0-or-later, with no ads.
WiFi Widget
A narrow tool for a narrow job: a configurable widget that shows your WiFi connection details, so you skip the settings menu. Version 1.8.2 was updated October 12, 2026, weighs 3.4 MB, and shows no ads. It is licensed GPL-3.0-only. Pick it for glanceable status, not for channel analysis.
Questions and answers
Which app here graphs WiFi channels?
WiFi Analyzer (open-source) does. It graphs channel signal strength, plots a single access point's signal over time, and rates channels. Google Play shows over 10 million installs and a 4.1 rating.
Do these network tools need root?
It depends on the app. PCAPdroid is a no-root monitor, and Network Scanner requires no root. Network Scanner can use optional Shizuku or root access to show MAC addresses on Android 10 and later.
Is Fing part of this category?
Fing is a network scanner that finds and identifies devices on your WiFi. Google Play shows over 50 million installs and a 4.5 rating. It shows no ads but does offer in-app purchases.
Related categories
Best-of lists
Start with the question you need answered. For a slow connection at home, use WiFi Analyzer (open-source) to compare channels, then run Network Scanner to see what else is connected. For odd data use, PCAPdroid shows per-app totals.
Check the update date before installing. Network Survey was updated November 1, 2026, and PCAPdroid September 22, 2026. Network Survey also needs 69.2 MB of space, so the small utilities are easier to keep around. Only scan networks you own or have permission to test.