Fix Your AI-Built Apple Sign In Integration
Apple's authentication service for Sign in with Apple. AI tools struggle with Apple's unique JWT-based client secret, token handling, and email relay system.
Common Apple Sign In issues we find
Problems specific to AI-generated Apple Sign In integrations.
Client secret JWT generation incorrect
AI-generated code fails to generate the JWT client secret correctly, missing required claims (iss, aud, sub), using the wrong signing key format, or setting incorrect expiry times.
Not handling private email relay addresses
Generated code assumes real email addresses but Apple's Hide My Email feature returns relay addresses (@privaterelay.appleid.com) that AI tools don't account for when sending emails.
Identity token not validated server-side
AI tools trust the identity token from the client without verifying it against Apple's public keys, allowing forged authentication claims.
User name only available on first authentication
Generated code expects the user's name in every authentication response, but Apple only sends it the first time. AI tools don't persist it, losing the name permanently.
Services ID and bundle ID confusion
AI tools confuse the Services ID (for web) with the App ID (for native apps), causing authentication to fail on one platform or the other.
Start with a self-serve audit
Get a professional review of your Apple Sign In integration at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Why is my Apple Sign In client secret not working?
Apple requires a dynamically generated JWT client secret signed with your private key. The JWT needs the correct team ID as issuer, 'https://appleid.apple.com' as audience, your Services ID as subject, and must use ES256 algorithm. AI tools get at least one of these wrong.
Why did I lose my user's name after the first Apple Sign In?
Apple only sends the user's name on the very first authentication. If your code didn't save it to your database during that first sign-in (which AI tools never do), it's gone. The user must revoke your app in their Apple ID settings and sign in again.
How do I send emails to users who used Hide My Email?
Apple relay addresses require your sending domain to be registered in your Apple Developer account under Sign in with Apple email configuration. AI tools don't mention this setup step, causing all emails to these addresses to bounce.
Related resources
Other Integrations
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