Radius® WebSDK

Proof of Presence, now in the browser.

Meet the all-new Radius WebSDK, bringing Proof of Presence and ultrasonic data transfer to browser experiences—without requiring users to download an app. Get hands-on and see how it fits your use case.

• Reach users without requiring an app install.
• Add browser-based proximity verification and data transfer.
• Use the speakers and microphones already available in compatible devices.