Append Rate Analysis
Overall Metrics
The append rate shows the percentage of users who create a passkey when shown an append/create screen:- Platform Breakdown: Separate rates for web and native apps
- Relative Percentages: Success rates by platform
- Absolute Numbers: Total volume of append opportunities
Multi-Screen Journey
Users don’t always create passkeys on first exposure:- Screen 1: Initial append screen conversion
- Screen 2-3: Users who need multiple prompts
- Screen 4: Persistent converters (often double-digit percentages)
- Screen 5+: Late adopters still converting
User Activation Rate
Track overall passkey adoption:- Total User Base: Percentage with at least one passkey
- Platform Comparison: Activation rates by platform
- Growth Tracking: Monitor adoption progress over time
Higher activation rates directly correlate with more users able to use passkeys for login, improving overall security and UX.
Operating System Performance
Platform-Specific Append Rates
Compare performance across operating systems:- iOS: Often highest rates (60%+ on first screen)
- Android: Moderate rates, watch for manufacturer variations
- Windows: Naturally lower initial rates
- macOS: Performance varies by browser
Issue Detection
Use OS breakdowns to:- Spot platform-specific problems
- Identify OS version issues
- Detect implementation flaws
- Prioritize optimization efforts