Adding Apple Sign In to your Fine.dev app? Let us review it.
Expert review for Apple Sign In integrations built with Fine.dev. We fix Fine.dev-generated Apple Sign In code for security, error handling & production readiness. From $19.
Common Fine.dev issues affecting integrations
Spec interpretation may differ significantly from intent
Fine.dev builds exactly what the specification says, not what you meant. Ambiguous specs lead to technically correct implementations that miss the actual product requirement.
Cross-file changes may miss security implications
When Fine.dev generates features spanning multiple files, security-sensitive changes — new endpoints, auth checks, data access patterns — are spread across the PR without a consolidated security review surface.
Generated tests may not cover real-world edge cases
Fine.dev writes tests for the happy path and obvious failure cases from the spec. Edge cases not explicitly mentioned — concurrent requests, null inputs, rate limits — are frequently untested.
Apple Sign In issues we find in Fine.dev apps
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.
Start with a self-serve audit
Get a professional review of your Apple Sign In integration at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code 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.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you review my Fine.dev-built Apple Sign In integration?
Yes. We regularly audit Apple Sign In integrations in Fine.dev-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What Apple Sign In issues does Fine.dev typically create?
Common issues in Fine.dev-generated Apple Sign In code include: client secret jwt generation incorrect, not handling private email relay addresses, identity token not validated server-side. We fix all of these in our code review.
How much does it cost to fix my Apple Sign In integration?
Start with our code audit ($19) to get a complete list of Apple Sign In issues. Most integration fixes are included in our Fix & Ship plan ($199). For complex integrations, we provide a custom quote after the audit.
What Apple Sign In best practices does Fine.dev typically miss?
AI tools often skip webhook signature verification, proper error handling for API failures, retry logic with exponential backoff, and secure token storage for Apple Sign In. Our review checks all of these and provides specific fixes.
Related resources
More Fine.dev Integrations
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