Deploy your Flutter app to Heroku
Step-by-step deployment help for Flutter apps on Heroku. We fix Flutter-specific deployment issues, configure Heroku, and get your app live. From $19.
Flutter issues we fix before deploying
Common Flutter problems that affect Heroku deployments.
API keys embedded in Dart source code
Secret keys and API credentials hardcoded in Dart files. Since Flutter web apps compile to JavaScript, these keys are visible to anyone who opens browser dev tools.
Inconsistent state management patterns
AI tools mix setState, Provider, Riverpod, and BLoC in the same project. This makes the app confusing to maintain and introduces subtle state synchronization bugs.
Large initial download size for web
Flutter web apps ship a large main.dart.js file by default. Without deferred loading and tree-shaking, the initial page load can take several seconds on slower connections.
No input validation before API calls
Form data sent to backend APIs without client-side validation, leading to poor user experience (errors only appear after a network round trip) and unnecessary server load.
Heroku deployment issues we check for
Common Heroku problems that break Flutter apps in production.
Free dyno sleeping causes cold starts
Eco and Basic dynos sleep after 30 minutes of inactivity. AI-generated apps with webhook receivers or background jobs break when the dyno is asleep.
Ephemeral filesystem loses uploaded files
AI tools save user uploads and generated files to the local filesystem, but Heroku's ephemeral FS wipes all changes on every dyno restart or deploy.
Database connection pool exhaustion
Heroku Postgres plans have strict connection limits (20 on Hobby). AI-generated apps open a new connection per request, exhausting the pool under moderate traffic.
Procfile missing or incorrect
AI-generated projects lack a Procfile, causing Heroku to guess the start command. For non-standard setups, this guess is often wrong.
Start with a self-serve audit
Get a professional review of your Flutter project before deploying to Heroku.
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
How do I deploy a Flutter app to Heroku?
We handle Flutter deployments to Heroku end to end. Start with our code audit ($19) to identify deployment blockers specific to your Flutter project, then we configure Heroku, fix issues, and get your app live in production.
What Flutter issues affect Heroku deployments?
Flutter projects commonly have api keys embedded in dart source code and inconsistent state management patterns. On Heroku, these combine with free dyno sleeping causes cold starts and ephemeral filesystem loses uploaded files to cause deployment failures.
Can SpringCode deploy my Flutter project to Heroku?
Yes. We specialize in deploying Flutter applications to Heroku. We audit your codebase for Flutter-specific issues, configure Heroku correctly, and handle the full deployment so your app runs reliably in production.
What does Flutter deployment to Heroku cost?
Our code audit ($19) identifies all Heroku deployment blockers in your Flutter project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
Other techs on Heroku
Deploy Flutter elsewhere
Need help deploying Flutter to Heroku?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.