Built a fintech app with Tabnine?
We'll make it production-ready.
Financial apps handle the most sensitive data there is — bank accounts, transactions, and personal financial information. A single security flaw can mean stolen funds, regulatory penalties, or permanent loss of user trust. AI tools can prototype a budgeting dashboard or invoicing system quickly, but the compliance, encryption, and audit requirements for financial software are far beyond what any AI tool generates out of the box.
Fintech App challenges in Tabnine apps
Building a fintech app with Tabnine is a great start — but these challenges need attention before launch.
Data encryption and storage
Financial data must be encrypted at rest and in transit. Account numbers, transaction histories, and personally identifiable financial information need field-level encryption, not just HTTPS. AI tools store financial data in plain text in the database, which is a compliance violation waiting to happen.
Transaction integrity
Financial transactions must be atomic — money debited from one account must be credited to another, with no in-between state where it disappears. AI-generated code doesn't use database transactions, meaning a server crash mid-operation can leave accounts in an inconsistent state.
Audit trail and compliance
Every financial action needs an immutable log — who initiated it, when, what changed, and what the balances were before and after. Regulators require this. AI tools don't generate audit logging, and retrofitting it into an existing codebase is tedious but essential.
Third-party financial API integration
Connecting to Plaid, Stripe, or banking APIs requires handling OAuth flows, webhook verification, idempotency keys, and retry logic for failed calls. AI tools generate the initial API call but miss the error handling and reliability patterns these services require.
Authentication and fraud prevention
Financial apps need multi-factor authentication, session timeout policies, device fingerprinting, and suspicious activity detection. Basic email/password auth from AI tools is nowhere near sufficient for an app that touches people's money.
Number precision and currency handling
JavaScript floating-point math causes rounding errors with money — $0.1 + $0.2 !== $0.3. AI tools use standard floats for currency calculations, which leads to penny discrepancies that compound over time and break reconciliation.
Regulatory awareness
Depending on what your app does, you may need to comply with PCI DSS, SOC 2, KYC/AML requirements, or state money transmitter regulations. AI tools have no awareness of these requirements, and non-compliance can result in fines or forced shutdowns.
What we check in your Tabnine fintech app
Common Tabnine issues we fix
Beyond fintech app-specific issues, these are Tabnine patterns we commonly fix.
Perpetuating existing security flaws
Because Tabnine learns from your codebase, it replicates existing security anti-patterns. If your code has XSS vulnerabilities, Tabnine suggests more of them.
Copying insecure patterns from teammates
Tabnine learns from the entire team's code. One developer's insecure patterns get suggested to everyone, spreading bad practices across the codebase.
Subtle copy-paste errors
Tabnine suggests code similar to existing code, but with small differences that cause bugs — wrong variable names, incorrect conditions, or missing parameters.
Stale patterns from old code
Tabnine suggests patterns from older parts of the codebase, even if the team has since adopted better practices.
Start with a self-serve audit
Get a professional review of your Tabnine fintech app 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.
Frequently asked questions
Can I build a fintech app with Tabnine?
Tabnine is a great starting point for a fintech app. It handles the initial scaffolding well, but fintech apps have specific requirements — data encryption and storage and transaction integrity — that need professional attention before launch.
What issues does Tabnine leave in fintech apps?
Common issues include: perpetuating existing security flaws, copying insecure patterns from teammates, subtle copy-paste errors. For a fintech app specifically, these issues are compounded by the need for data encryption and storage.
How do I make my Tabnine fintech app production-ready?
Start with our code audit ($19) to get a clear picture of what needs fixing. For most Tabnine-built fintech apps, the critical path is: security review, then fixing core flow reliability, then deployment. We provide a fixed quote after the audit.
How much does it cost to fix a Tabnine-built fintech app?
Our code audit is $19 and gives you a complete report of issues. Fixes start at $199 with our Fix & Ship plan. For larger fintech app projects, we provide a custom fixed quote after the audit — no hourly billing.
Get your Tabnine fintech app production-ready
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.