# iPerf3 Client & Server

> Native iPerf3 client and server apps for iPhone, iPad, Mac, and Android. Run real TCP/UDP throughput tests between two devices on your own network. This is NOT a one-tap "internet speed test" like Speedtest: iPerf3 measures the link between a client and an iPerf3 server (a router/NAS/PC running iperf3, or a second device running this app in server mode). Built for network engineers, sysadmins, Wi-Fi installers, homelab and power users who need accurate, repeatable measurements with a clean native UI: server profiles, test history, live charts, CSV/JSON export, and Apple Shortcuts / x-callback-url automation.

## Apps & download
- [iPerf3 for iPhone & iPad](https://iperf3app.com/ios/): native iOS/iPadOS client and server; TCP/UDP, reverse and bidirectional tests, Shortcuts automation.
- [iPerf3 for Mac](https://iperf3app.com/mac/): native macOS app; one Apple purchase unlocks iPhone, iPad and Mac together.
- [iPerf3 for Android](https://iperf3app.com/android/): native Android client and server (Pro); TCP/UDP, advanced parameters, charts, export.

## Guides & tutorials
- [iPerf3 tutorial](https://iperf3app.com/blog/iperf3-tutorial/): what iperf3 is and how to use it.
- [How to test LAN speed (not the internet)](https://iperf3app.com/blog/how-to-test-lan-speed/): measure real local network speed in ~5 minutes, no command line.
- [Run an iPerf3 server](https://iperf3app.com/blog/run-an-iperf3-server/): set up the server side of a test.
- [Speedtest vs iPerf3](https://iperf3app.com/blog/speedtest-vs-iperf3/): why Speedtest measures your ISP, not your LAN.
- [Test a 10GbE network](https://iperf3app.com/blog/test-10gbe-network/): validate multi-gigabit links.
- [Homelab network testing toolkit](https://iperf3app.com/blog/homelab-network-testing-toolkit/): how to test network performance in a homelab.
- [VPN throughput testing](https://iperf3app.com/blog/vpn-throughput-testing/): measure real throughput through a VPN.
- [Prove ISP throttling](https://iperf3app.com/blog/prove-isp-throttling/): document when your ISP throttles traffic.
- [Fix Wi-Fi dead zones](https://iperf3app.com/blog/wifi-dead-zones-fix/): find and fix weak-signal areas.
- [Test mesh Wi-Fi speed](https://iperf3app.com/blog/test-mesh-wifi-speed/): measure throughput across mesh nodes.
- [iPerf3 on iPhone and Android](https://iperf3app.com/blog/iperf3-on-iphone-and-android/): run iperf3 on mobile devices.
- [Measure jitter and packet loss](https://iperf3app.com/blog/test-jitter-packet-loss/): UDP testing for Zoom/Teams call quality; which numbers mean trouble.
- [Wi-Fi 7 speed on iPhone](https://iperf3app.com/blog/test-wifi-7-speed-iphone/): which iPhones have Wi-Fi 7, the 160 MHz cap, and how to measure real throughput.

## Use cases
- [Wi-Fi installers](https://iperf3app.com/iperf3-for-wifi-installer/)
- [Field engineers](https://iperf3app.com/iperf3-for-field-engineer/)
- [Managed service providers (MSPs)](https://iperf3app.com/iperf3-for-msp/)
- [QA labs](https://iperf3app.com/iperf3-for-qa-lab/)

## Product pages by intent
- [iPerf3 for iOS](https://iperf3app.com/iperf3-for-ios/): the app for iPhone and iPad.
- [iPerf3 for iPhone](https://iperf3app.com/iperf3-for-iphone/): run iperf3 tests from an iPhone.
- [iPerf3 client for iOS](https://iperf3app.com/iperf3-client-for-ios/): use the app as an iperf3 client against your own server.
- [iPerf3 server for iOS](https://iperf3app.com/iperf3-server-for-ios/): run an iperf3 server on an iPhone or iPad.
- [iPerf3 for Mac](https://iperf3app.com/iperf3-for-mac/): the native macOS app.

## Developer
- [Vladimir Chemeris](https://chama.pro/): independent developer who builds and supports the iPerf3 apps himself; his other apps are listed on chama.pro.

## Pricing
- iOS + macOS: one-time purchase **$6.99 USD**. A single Apple purchase unlocks iPhone, iPad and Mac. No subscription, no ads, no in-app purchases.
- Android (Pro): one-time purchase **$3.99 USD**. No subscription, no ads.
- Prices vary by App Store / Google Play storefront and local taxes (EU prices include VAT).

## Support & policy
- [Support](https://iperf3app.com/support/)
- [Privacy policy](https://iperf3app.com/privacy/)
- [Apple Shortcuts & x-callback-url](https://iperf3app.com/ios/shortcuts/)
- [Shortcuts templates](https://iperf3app.com/ios/shortcuts/templates/): ready-made automation recipes for common tests.