iPerf - Speed Test Tool
Test the limit of your network
$1.99 · Designed for iPad. Not verified for macOS.
This app is an iOS port for iperf3, which is the most commonly used network testing and performance computation tool. Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning of various parameters and UDP characteristics.
Features
- Compatible with iperf3 in other platforms
- Run as iperf3 client or server
- Customize iperf3 arguments
- Display Wi-Fi interface link speed and SSID
IMPORTANT
This application is based on iperf 3.21, which is not compatible with the legacy iperf (version 1.x and 2.x). And it may have some minor issues with the other iperf3 versions.
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.
The developer, Surge Networks Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Surge Networks Inc.
- Size
- 870.4 KB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple TV
Requires tvOS 13.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Yachen Liu

