Users prefer Sign in with Google. Give them what they prefer.
Social login (Google, GitHub, Apple) reduces signup friction and eliminates password management. Implementing it correctly requires OAuth flow handling, account linking (when a user's social email matches an existing account), and provider-specific requirements.
Users requesting social login (Google, GitHub, Apple), or low signup rates attributed to password-based-only signup
Social login requires implementing the OAuth 2.0 / OIDC flow for each provider:
The OAuth flow:
- User clicks "Sign in with Google"
- App redirects to Google's authorization endpoint with client_id, scope, and redirect_uri
- User authenticates with Google and grants permission
- Google redirects back with an authorization code
- App exchanges the code for an access token and ID token
- App verifies the ID token, extracts the user's email and profile
- App creates or finds the user account, establishes a session
Account linking challenge:
If a user previously signed up with email/password using the same email address that their Google account uses, should they get the same account?
Options:
- Auto-link: If email matches, link the accounts. Simple; small security risk (someone else could have registered that email).
- Require confirmation: "We found an existing account with this email. Log in with your password to link Google Sign-In." More friction; more secure.
- Separate accounts: Don't link; the user has two separate accounts. Confusing.
Provider-specific notes:
Google: Requires domain verification, OAuth consent screen configuration. Straightforward to implement.
Apple: "Sign in with Apple" is required if an iOS app offers any social login. More complex OAuth flow; Apple provides a fake email option (users can hide their real email). Requires Apple Developer account.
GitHub: Common for developer-facing tools. GitHub emails may not be public; request the user:email scope.
Implementation via Clerk:
Clerk supports all major social providers with 3-line configuration. Provider-specific OAuth apps still need to be created; the flow implementation is handled by Clerk.
Social login with Google and other providers, with account linking for existing users and a smooth OAuth flow
Google Sign-In
(most commonly requested)
GitHub Sign-In
for developer tools
Apple Sign In
for iOS applications
Account linking
flow for existing users
Profile sync
from provider (name, avatar)
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
Social login with Google and other providers, with account linking for existing users and a smooth OAuth flow
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
Social login scope is the number of providers and whether using an auth provider. Fixed-price from the provider list.
Questions, answered.
Apple requires "Sign in with Apple" if the app offers any other social login option (Google, Facebook). The rule: if you offer OAuth login, you must offer Sign in with Apple on iOS.
Yes — account settings page that shows connected providers and allows unlinking. Important: require a fallback login method (email/password) before allowing the last social provider to be unlinked.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.