Conversion Benefits
Social login can improve conversion by 20-40%. It removes password fatigue and typing on small screens.
Choosing Providers
Don't offer too many. Stick to the big 2-3: Sign in with Apple (mandatory on iOS if others exist), Google, and Facebook.
Platform Guidelines
Follow strict branding guidelines from providers. Buttons must look correct. Misuse can lead to rejection or API revocation.
Placement and Design
Place widely used options at the top. Use native buttons for trust. Ensure equal visual weight for all options.
Data Request Scope
Request minimum permissions. Asking for friend lists or posting rights kills conversion. You only need email and name.
Handling Errors
Handle cancellations and network errors gracefully. Don't leave users stuck on a loading spinner.
Email Fallback
Always provide an email options for users who don't use or trust social networks. Keep it visible but secondary if optimizing for speed.