TetherAudio
Stream audio to your PC w/ USB
About
This app transforms your iPhone into a high-quality speaker for your computer using a USB connection. Enjoy uncompressed audio streaming with adjustable latency and background playback. It's designed for seamless integration without Wi-Fi or cellular data usage.
What's New in TetherAudio
1.1
September 30, 2026
Subscriptions & In-App Purchases
App Access
Get to use all of the features of TetherAudio.
Developer apps
FAQ
How does TetherAudio work?
TetherAudio turns your iPhone into a computer speaker via a USB cable. You install the free Tether Sender program on your PC, and audio from your computer plays through your iPhone's speakers or connected headphones.
Does TetherAudio require a subscription?
Yes, TetherAudio requires an auto-renewable subscription for all features, including audio streaming. A 3-day free trial is available for new subscribers. The subscription details are shown in the app before purchase.
What is the audio quality like with TetherAudio?
The app streams uncompressed 16-bit PCM audio at 44.1 or 48 kHz in stereo, matching the computer's output quality. Audio travels exclusively over the USB cable, avoiding Wi-Fi or cellular data.
Can I use TetherAudio with my screen locked?
Yes, playback continues even when the screen is locked or the app is in the background. Lock screen controls allow you to pause and resume playback, and these actions are sent as media keys to the computer.
What are the latency options in TetherAudio?
TetherAudio offers adjustable latency: Low (approx. 20 ms) for syncing with on-screen action, Normal (40 ms) for everyday use, and Stable (80 ms) when the USB bus is shared. A buffer meter helps visualize the delay.
What devices is TetherAudio compatible with?
TetherAudio requires an iPhone running iOS 17 or later. You also need a USB cable and the Tether Sender program, which is available for free from tether-audio.com for your computer.
How do I manage or cancel my TetherAudio subscription?
You can manage or cancel your subscription at any time within your Apple Account settings. Auto-renewal must be turned off at least 24 hours before the current period ends to avoid further charges.
Does TetherAudio have ads?
No, TetherAudio does not contain advertisements. The app is free to download, but a subscription is required to access its full audio streaming features.
