iPerf3 Android

No. iPerf3 measures the real throughput between two devices on your own network — Wi-Fi, Ethernet, VPN or mobile data — not the path to your ISP. For a public internet speed test, use a tool like Speedtest instead.

Yes — iPerf3 always tests between a client and a server. The server can be a router, NAS, PC, or another Android device running this app in server mode. There is no central server you connect to.

Yes. Switch the app to server mode and it listens for incoming tests, so you can run a full client-to-server test between two Android phones, or between your phone and a laptop, NAS or router.

Yes. TCP measures raw throughput, while UDP reports jitter and packet loss — useful for VoIP, video calls, gaming and other real-time traffic.

Wi-Fi, mobile data (4G/5G/LTE), wired Ethernet (via a USB adapter), and VPN links — anywhere your Android device can reach an iPerf3 server.

Yes. iPerf3 Pro for Android is a one-time purchase with no subscription and no ads.