---
url: 'https://www.corbado.com/passkey-benchmark-2026/cross-device-authentication'
title: 'Cross-Device Passkey Completion Rate'
description: 'Cross-device passkey authentication benchmark for desktop-to-phone flows without a local credential.'
lang: 'en'
dir: 'ltr'
keywords: 'cross-device authentication, passkey cross-device, desktop to phone passkey, passkey completion rate'
---

# Cross-Device Authentication Completion Rate

[← all benchmarks](https://www.corbado.com/passkey-benchmark-2026.md)

Cross-Device Authentication Completion Rate measures how reliably desktop-to-phone passkey flows finish when the credential is not available locally. This is a critical usage benchmark because cross-device friction can block otherwise ready users from turning credential coverage into passkey logins.

## How often desktop-to-phone passkey logins finish

*Q1 2026 · cross-device completion*

Cross-Device Authentication (CDA) happens when a user's passkey is on a different device than the one they're logging in on, typically a desktop browser scanning a QR code with their phone. This benchmark measures how often that flow finishes once the user opts into it. Same-device flows and mobile-only flows are excluded.

| Platform | CDA completion |
| --- | --- |
| Windows web | 60%–78% |
| macOS web | 66%–86% |

*Completion = the user opened the CDA prompt on desktop and finished the passkey ceremony on their phone.*

### CDA Completion by Login Context

Identifier-first is the new-device / unrecognized-device case where desktop CDA is most exposed. Same-device nudges are continuity flows and complete much more reliably.

| Platform | Same-device nudge | Identifier-first |
| --- | --- | --- |
| Windows web | 79%–98% | 52%–67% |
| macOS web | 83%–98% | 59%–76% |

### Android In-depth Data: Google, Authenticate 2025

Google's Authenticate 2025 numbers are the available in-depth Android drop-off view: user cancellations and device availability are a different problem from credential-not-found or connection failures.

| Flow step | Rate |
| --- | --- |
| Starting page -> browser prompt | 48% |
| Browser prompt -> QR code scan | 29% |
| QR code scan -> authenticator success | 64% |
| Authenticator success -> user signed in | 89% |

| Android authenticator failures | Share |
| --- | --- |
| User cancellations | 44% |
| Credential not found | 32% |
| Connection issues | 17% |
| Other | 6.8% |

### Notes

1. When asking if CDA should be started, Windows shows a 34% decline branch, most likely because users do not have access to the phone at that moment.
2. Equivalent in-depth drop-off data is only available for Android from Google, Authenticate 2025; macOS is therefore reported as a desktop CDA completion benchmark without the same Android-style failure taxonomy.

## Bring your numbers to the benchmark.

*Q1 2026 · beyond the public report*

**Asking yourself:**

- *How does this look in **your** country?*
- *Is your customer mix older or younger than the average we publish?*
- *Want the per-segment breakdown we cannot publish?*

The public report is a slice. Corbado Research holds the full picture — by country, vertical and cohort. Tell us your context and we will run the comparison against your deployment.

[Contact us for the full picture →](https://www.corbado.com/contact-sales)

## Further Reading

Curated Corbado research and primary references.

- **Device support · passkeys.dev** — [Passkey Device Support](https://passkeys.dev/device-support/) — Compatibility matrix for cross-device passkey behavior across operating systems, browsers and devices.
- **Hybrid transport · Corbado blog** — [WebAuthn Passkey QR Codes & Bluetooth: Hybrid Transport](https://www.corbado.com/blog/webauthn-passkey-qr-code) — Deep dive on QR-code initiation, Bluetooth proximity and why CDA behaves differently from local passkeys.
- **CDA strategy · Corbado blog** — [WebAuthn Cross-Device Authentication: Passkeys via Mobile-First Strategy](https://www.corbado.com/blog/webauthn-cross-device-authentication-passkeys-mobile-first) — Mobile-first view of cross-device authentication when the passkey is available on a phone.

[← all benchmarks](https://www.corbado.com/passkey-benchmark-2026.md)

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*Annual benchmark for passkey readiness, creation, usage and adoption strategy by Corbado, the passkey intelligence platform for CIAM teams. [Learn more →](https://www.corbado.com).*