Building a saas app with TypeScript? Let us review it.
Expert code review for saas apps built with TypeScript. We fix TypeScript-specific security gaps, optimize performance, and handle deployment. From $19.
Common TypeScript issues we find
Real problems from TypeScript codebases we've reviewed.
Excessive use of 'any' type
AI tools use 'any' to bypass type errors instead of defining proper types, removing all the safety benefits TypeScript provides.
Missing strict mode
tsconfig.json without strict mode enables sloppy type checking that allows null errors and implicit any types.
Type assertions instead of type guards
Using 'as' casts to force types instead of runtime checks, causing crashes when data doesn't match the asserted type.
Incorrect generic implementations
Overly complex or incorrect generic types that confuse rather than help, making the code harder to maintain.
SaaS App challenges to solve
Key saas app concerns that AI-generated code often misses.
Subscription billing complexity
AI tools generate basic Stripe checkout but miss webhook handling, failed payment recovery, plan upgrades/downgrades, proration, and subscription lifecycle management. Your billing needs to be bulletproof — incorrect charges destroy trust instantly.
Multi-tenant data isolation
Every user's data must be completely isolated. AI-generated code often stores data without proper user scoping, meaning one customer could potentially see another's data. This is a deal-breaker for any business customer.
Authentication and authorization
SaaS needs more than login/signup. You need team management, role-based access control, API key management, SSO for enterprise customers, and secure session handling. AI tools handle basic auth but rarely implement authorization properly.
Uptime and reliability
Paying customers expect your app to work. You need error tracking, monitoring, graceful degradation, database backups, and an incident response plan. AI-generated apps crash ungracefully and have no observability.
What we check
Key areas we review for TypeScript saas app projects.
Stripe integration — webhooks, subscription lifecycle, failed payment handling
Data isolation — can one user access another's data?
Authentication flows — signup, login, password reset, session management
Authorization — role-based access, team permissions
Not sure if your app passes? Our code audit ($19) checks all of these and more.
Start with a self-serve audit
Get a professional review of your TypeScript saas app project 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 a saas app built with TypeScript?
Yes. We regularly audit TypeScript saas app projects and understand the specific patterns and pitfalls of this combination. Our review covers security, performance, and deployment readiness.
What issues do you find in TypeScript saas apps?
Common issues include excessive use of 'any' type and missing strict mode on the TypeScript side, combined with saas app-specific concerns like subscription billing complexity and multi-tenant data isolation. We check for all of these and more.
How do I make my TypeScript saas app production-ready?
Start with our code audit ($19) to get a prioritized list of issues. For TypeScript saas app projects, the typical path is: fix security gaps, address saas app-specific requirements, optimize TypeScript performance, then configure deployment. We provide a fixed quote after the audit.
How long does it take to audit a TypeScript saas app?
Our code audit delivers a full report within 24 hours. For TypeScript saas app projects, we check security, architecture, performance, and deployment readiness across all TypeScript-specific patterns. Fixes are scoped separately with a fixed quote.
Related resources
TypeScript by Use Case
Need help with your TypeScript saas app?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.