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iPerf - Speed Test Tool

iPerf - Speed Test Tool

Test the limit of your network

19 ratings
60 reviews
🔧 Utilities
$1.99

Details

Released
January 9, 2015
Updated
August 2, 2026

Features

Developer

Surge Networks Inc.
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About

Measure your network's maximum TCP bandwidth with this tool. It allows for the tuning of various parameters and UDP characteristics, and is compatible with iperf3 on other platforms. View Wi-Fi interface link speed and SSID.

✓Network performance testing
✓TCP bandwidth measurement
✓UDP characteristic tuning
✓iPerf3 client/server compatibility
✓Customizable arguments
✓Wi-Fi interface details
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What's New in iPerf

3.0.0

August 2, 2026

This release introduces a major architecture upgrade for iOS 26: - Updated the iPerf3 core to version 3.21. - Migrated iPerf execution to the new ExtensionFoundation framework. - Isolated test sessions in a separate process for improved stability. - Fixed a main-thread crash when a test session finished. - Fixed UITableView update warnings and related UI issues. - Improved state synchronization for client, server, and test results. - Removed legacy compatibility code and deprecated dependencies. - Improved overall code quality, performance, and UI behavior. This version requires iOS 26 or later.

More

User reviews

Most RecentHighest RatedLowest Rated

Can’t make it to work

“No route to host” error. Every other app connects fine
SSharper_78

Всё работает.

В серверном режиме точно работает, в клиенте не проверял.
UUaitspirit

Perfekt leider nicht auf AppleTv

Hallo die App ist super einfach zu bedienen und das UI ist perfekt. Auf dem iPhone gibt es die Möglichkeit „Customize Arguments“ wo man dann auch —udp testen kann um Packet loss zu finden. Die Option fehlt leider auf dem Apple TV. Deshalb keine volle Punktzahl. Bitte asap auf Apple TV. Danke
Nnurix5

Не работает

Никуда не коннектится
ДДиоген

Works great

I was suspicious because the last updated is 2 years ago and all the (very old!) negative ratings. But I gave it a try and didn’t nit regret. Works great with iOS 18.5

Also this is the only app I found for iPhone which is able to start iPerf in server mode.
Wwifiman23
See 55 more reviews

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FAQ

What does this app do?

This application is an iOS port of iperf3, a widely used tool for measuring maximum TCP bandwidth. It allows users to test and tune various network parameters for both TCP and UDP traffic. It also provides details about your Wi-Fi interface, including link speed and SSID.

What are the key features of this network testing tool?

Key features include compatibility with iperf3 on other platforms, the ability to run as either an iperf3 client or server, and options to customize iperf3 arguments. It also displays your Wi-Fi interface's link speed and SSID for easy monitoring.

Is this app compatible with older versions of iperf?

This application is based on iperf 3.6 and is not compatible with legacy iperf versions (1.x and 2.x). While it aims for compatibility with other iperf3 versions, there may be minor issues with certain versions.

Who is this app intended for?

This app is designed for network administrators, developers, and technically inclined individuals who need to accurately measure and analyze network performance. It's useful for troubleshooting and understanding bandwidth limitations.

Is this app free to use?

Yes, this application is available for free. It does not have any in-app purchases or advertisements, providing a straightforward and unrestricted network testing experience.