How small a team does this make sense for?

One founder with paying customers and no engineer. That is the case it is built for.

Which builders and stacks does it work with?

Lovable, Bolt, Replit, V0, Emergent, Claude Code, Base44, and any app that answers on a URL. Connecting your GitHub adds the code-level findings and ties an incident to the change that caused it.

Do I have to leave Lovable?

No. You keep building where you build. When you want the database, the logins and the hosting on accounts in your own name, that migration exists as a Managed Build.

How does pricing work?

A monthly plan, plus credits you spend when BWorlds works on the app: the audit, a fix, checking the fix worked. Managed Builds are quoted on top. The First Look is free.

Why not just ask Claude to audit it?

One prompt, one moment. It cannot see production, it cannot tell you the fix worked, and there is nobody behind it when the answer is wrong. Same for the scan built into your AI builder.

Do you touch my code?

Nothing changes unless you apply it. Your code stays on your GitHub.

Do you fix the code for me?

By default you get the BWorlds fix for your AI tool, and a verification once you publish. On a Managed Build a human operator prepares and tests it.

Is this the page for internal tools?

No. Enterprise for apps inside your own company, Studio for apps you build for clients, Builders if you are building on your own.

BWorlds for startups

Your first engineering hire that works 24/7.

BWorlds audits your product as it grows, watches it while customers use it, and fixes everything that breaks. All from one place.

Get a First Look Book a demo

The First Look is free. Your URL is enough, no code access.

Built with your tool.
Looked after by BWorlds.

Lovable

Bolt

Replit

Base44

Emergent

Claude Code

Run

Know the moment your product breaks for a customer.

BWorlds watches uptime from the outside, catches every error with the session that hit it, and replays what the user did.

Know if your app is down

Checked around the clock, with a status page your customers can see.

Which error to fix first

Ranked by impact, tied to the change that caused them.

Replay what the user did

Watch the session behind a failure, click by click.

Fix it, and know it worked

Paste the fix into your AI tool. BWorlds rechecks after you publish.

What you actually get

Keep building without hiring.

BWorlds is an engineering teammate that already knows everything about your product, how it is used and its errors. It does not build features. Building stays in your AI tool.

Get ready for your next customers

The audit runs again as the product changes, so the next signature does not wait.

See what breaks in real use

Uptime, errors and the sessions behind them, watched while customers are in the app.

Generate fixes, not tickets

Every finding comes with a BWorlds fix for your AI tool, checked again once you publish.

Improve every week by default

Architecture and code quality reviewed as the product grows, so each change stops breaking the last.

Launch

Always ready for the next customer.

Themed audits run on your product, chosen by its risk profile and by what you changed. What they verify assembles into a Trust Page, ready when a customer asks.

SecurityReliabilityDataPerformanceCostsCode quality

Trust Page

yourproduct.com

Verified by BWorlds

No keys or secrets exposed in the browserSecurity
Customer data separated between accountsData
Personal data mapped, tracking waits for consentData
Uptime and errors monitored around the clockReliability
Rate limits on public endpointsOpen
Backups tested by restoring themOpen

Assembled from your own results, open items included. You do not build it, and it updates when the app does.

Improve

Ship every week without breaking last week.

AI builders pile code up until each change breaks two others. It is the number one problem of AI-built apps. BWorlds reviews how the app is built, recommends the architecture that fits this product and where it is going, and writes the rules your AI tool follows from then on.

A First Look in minutes. No card. No code access.

Paste a URL. See what a customer’s IT team or an attacker would find. Connect the code when you want the full audit.

Get a First Look

With your developer

Give your first developer a senior team’s tooling.

Maintenance, security and on-call are already covered, so their days go to the product. From day one they get the findings, every error with its session, and replay.

Day one starts with context

The app’s findings, incidents and history are already recorded.

On-call is already covered

They are not the only person between your customers and a Sunday outage.

Their agent talks to BWorlds

A CLI and agent access, so findings reach the coding agent they already work in.

Replay and error sessions from the start

They debug from the session that failed, not a description of it.

The best engineering standards for your product.

Every audit runs on playbooks built from how the best engineering teams work: securing data, sizing a database, controlling cloud and AI costs, reviewing code before it ships. Managed Builds put a human operator behind them.

BWorlds

Get Ready for Real Users

Emmanuel Marboeuf

Co-founder of BWorlds. 10 years as a CTO, cyberdefense background.

The full pre-launch review: we map your app silently, ask you what can never break, then dig where your business is actually exposed. You get a ranked fix list, not a 40-page report.

BWorlds

Keep Shipping Without Breaking Things

What a startup normally pieces together once customers arrive.

What you needPieced togetherWith BWorlds

Uptime monitoring$10 to $34 / moIncluded

Error tracking$26 to $80 / moIncluded

Session replay$25 to $176 / moIncluded

Security scanning$25 to $300 / moIncluded

Weekly audits as the app changesA contractor half a day a week, $800 to $1,600 / moIncluded

An expert watching every error, every sessionAn on-call retainer, $500 to $1,500 / moIncluded

What it comes toAbout $2,500 / mo on average, tools and peopleFrom $25 / mo

Tool ranges are public list prices as of September 2026, from the entry paid tier to a mid plan. Each has a free tier that a product with paying customers outgrows. The two people lines are typical contractor and on-call rates, and the total is the midpoint of every range. See the plans for what each one includes.

See if your product is breaking for customers. Today.

Paste your URL. Free, no code access, minutes.

Get a First Look Book a demo

The questions founders ask.

Building for a company's own teams? Enterprise. Building apps for clients? Studio. Building on your own? Builders.