For Lovable · Bolt · v0 · Replit · Cursor · Base44 apps
Vibe-coded apps,made safeto scale.
We secure, scale and maintain apps built with Lovable, Bolt, v0, Replit, Cursor and Base44 — and cut the cloud bill that comes with them. You keep the code, the accounts and the data.
45 clients · 50 projects · You own the code, accounts and data
- Secure. Every table, key, bucket and auth flow checked. Findings in writing, with severity and proof.
- Scale. A measured load test before and after. You see the numbers.
- Cheaper to run. Your bill reviewed line by line. Options modeled before anything moves.
- Fetching production bundle doneOK
- Secrets in client code 1 service key foundCRITICAL
- Row Level Security 4 of 12 tables openCRITICAL
- Storage buckets 1 public bucketHIGH
- Auth: password reset flow okOK
- Backups never restoredHIGH
- p95 latency @ 50 users 2.8sHIGH
- Hosting bill drivers 3 levers foundINFO
Production readiness
This is a scripted demo. Your real assessment is done by an engineer, on your app, with your permission.
Teams we've built and run software for · 45 clients · 50 projects delivered
- South Lane Animal Hospital
- Hive International
- Gender Health Training Institute
- Peng Salon & Spa
- Click Holidays
- Professional Financial Group
- Activezoon
- Howard Kennedy LLP
- MO Better Healthcare
- Renascence
- Property Finders Real Estate
- Avenue Coffee
- Client logo, letter B monogram
- Chic Floors
AI tools build the app. Nobody owns production.
One Lovable-hosted app exposed 18,697 user records.
The Register, Feb 202645% of AI-generated code samples failed security tests.
Veracode 2025None of this is a reason to stop building with AI. It is a reason to check before real users arrive.
From preview to production
01 / 04 · Prototype
It works in preview.
The app answers in the builder. The browser still talks to the database, and a key is in the bundle.
Prototype
It works in preview.
The app answers in the builder. The browser still talks to the database, and a key is in the bundle.
Secured
Locked down, table by table.
The key moves to the server. Each table gets a policy, and the risky links close.
Scaled
Measured under load.
A CDN and a connection pooler sit in front of the database. Sample p95 falls from 2.8s to 0.4s.
Maintained
Watched, backed up, right-sized.
Monitoring stays on, a restore is tested, and the bill drivers shrink. No currency in this picture.
Three ways we help
Secure and scale vibe-coded apps
Security audit, scale-readiness audit, rescue sprint, care plan.
See the pathCut your cloud bill
Line-by-line bill review, right-sizing, migrations, self-hosted Supabase.
Review the billBuild CRMs and internal tools
Software your team owns — no per-seat rent, your data in your database.
See what we buildAlso: SaaS engineering · Blockchain & Web3 · For agencies
Free assessment, then a written scope.
- Free assessment
- Audit — security, scale or cost
- Sprint — rescue, migration or build
- Care plan
- Free assessment
- Proposal
- Acceptance
- 30% advance
- Build
- 40% on completion
- UAT (your acceptance testing)
- 30% after UAT
No promises we can't measure. You get a written scope, acceptance criteria you approve, and acceptance testing before the final payment.
We work on apps from
- Lovable
- Bolt
- v0
- Replit
- Cursor
- Base44
- Supabase
- Vercel
- Cloudflare
- AWS
Names are for identification. Trademarks belong to their owners.
What clients say
“BlitzHash has by far the best developers I've ever had the pleasure of working with. My favorite project that we worked on together was for a highly complex pricing tool, involving hundreds of products, equations, and variables.”
“We developed a good partnership. I just wanted to share a quick note and let you know that you guys do a really good job. I’m glad I decided to work with you. You guys are reliable, flexible and very responsive.”
BrainHash — our free product, built and run by us.
A private notes workspace we design, ship and operate. No demo login.
Try BrainHash freeTry a tool before you book
Health scan demo
A scripted sample. We do not scan third-party apps from this page.
Open the sampleCost lever check
Which levers likely apply. No currency and no BlitzHash prices.
Check the leversProduction readiness score
A short questionnaire you can finish before the call.
Take the scoreTechnologies we build with
Technologies and tools we work with. Not partners, not certified, not endorsed.
Supabase
Supabase: self-hosted and managed Postgres, auth, storage.
Firebase
Firebase: auth and data when a product already runs there.
Google Cloud
Google Cloud: compute, storage, and networking in accounts you own.
AWS
AWS: compute, storage, and networking in accounts you own.
Cloudflare
Cloudflare: DNS, CDN, and edge protection in front of production apps.
Vercel
Vercel: Next.js hosting and preview deploys.
Next.js
Next.js: App Router interfaces and server routes.
React
React: product interfaces and component systems.
Node.js
Node.js: APIs, workers, and build tooling.
PostgreSQL
PostgreSQL: the database behind the products we ship.
Docker
Docker: images and Compose stacks for self-hosted services.
Kubernetes
Kubernetes: container orchestration when a product needs it.
Sentry
Sentry: error tracking after launch.
GitHub
GitHub: source control, pull requests, and CI.
Stripe
Stripe: checkout, billing, and signed webhooks inside products we build.
OpenAI
OpenAI: model APIs inside product features scoped in writing.
Anthropic Claude
Anthropic Claude: model APIs inside product features scoped in writing.
Cursor
Cursor: the editor we use while building and reviewing your repository.
Grok / xAI
Grok / xAI: model APIs inside product features scoped in writing.
Ethereum
Ethereum: EVM networks for contracts and wallet flows.
Solidity
Solidity: smart contracts with tests and an audit path.
Hostinger
Hostinger: servers we provision for self-hosted stacks.
Trademarks and brand marks belong to their respective owners. This list describes technologies and tools we work with.
Latest from the blog
Own the repo, the environments, and the billing when a product takes payment
A product that charges customers needs a repository you control, separate environments, and billing that lives in your accounts. Here is the handover we expect before launch.
What self-hosting Supabase actually includes
A self-hosted Supabase project is the API, Studio, Auth, Storage, and Postgres on a server you control. You also own backups, updates, hardening, and email.
Production checks for an AI-built app before you invite real users
A preview can look finished and still fail on day one. These are the checks that matter before real people sign up: access control, secrets, auth URLs, routing, and backups.
FAQ
Questions worth answering first
What is a vibe-coded app?
An app built quickly with Lovable, Bolt, v0, Replit, Cursor, Base44 or a similar AI builder. It often works in preview before anyone has checked who can read the data.
Do you rewrite everything?
No. We keep what works, and we tell you when a rebuild is the smaller path.
Do you need access to my accounts?
Read-only for the assessment. Least privilege for the work. You own the code, the accounts and the data, and you can remove our access.
How do you price?
A free technical assessment, a written proposal, and your acceptance come first. Project work is then paid 30% in advance, 40% on completion, and 30% after UAT (user acceptance testing) sign-off. Every price is a custom quote after your assessment. No work starts until you accept the proposal. Care is billed each month, and you can cancel any time. If something we changed breaks within 14 days of launch, we fix it at no charge.
Can you cut our hosting bill without downtime?
When a change can be made in place, we do that. When a move is safer with a planned cutover, the proposal says so. If moving would cost more than it saves, we say that too.
Can you maintain it after launch?
Yes. A care plan covers monitoring, backups with a restore test, updates, and a monthly look at the bill. The response window is written into the agreement.
Not sure what your app needs?
Book a free 30-minute technical assessment. You'll leave with a short written list of risks and next steps, whether or not you hire us.
Get a free technical assessment