Audit
Paste your app’s link and get a first read in minutes, before you connect any code. Connect the code and the audit goes all the way down: security, reliability, data protection, performance, costs, and code quality, ranked by impact.
About BWorlds
AI made building fast. Running the app is still a job.
BWorlds is engineering that never sleeps, for every app. It audits apps built with AI, watches them while real people use them, and turns every problem it finds into a fix you apply in the tool you already build with. It serves solo builders, startups, agencies, and companies whose teams build apps with AI.
The product
What BWorlds does
Watch
Uptime, errors, session replay, and every connected code change, observed around the clock. When something breaks, you hear it from BWorlds, not from a customer.
Fix
Each finding comes with a plain-language diagnosis and the exact prompt to paste into Lovable, Bolt, Replit, Base44, or Claude Code. After you publish, BWorlds checks that the fix landed.
Show it
Every plan includes a status page and a Trust Page, so the people who depend on your app can see it is checked and watched.
Why BWorlds
What makes BWorlds different
Works with every AI builder, not one
Lovable’s own security and monitoring tools only see apps published on Lovable. BWorlds works the same way on Lovable, Bolt, Replit, Base44, v0, Emergent, and Claude Code, and your app’s history stays with it when you switch tools or hosts.
See supported toolsWatching costs no credits
Uptime, error monitoring, session replay, alerts, and the status page never spend credits, and there is no per-app or per-seat fee: connect as many apps as you want, on every plan, Free included. Credits only pay for work, meaning audits, fixes, and rechecks.
See pricingWritten for owners, not only engineers
Developer security platforms such as Snyk and Aikido assume an engineer reads the findings inside a CI pipeline. BWorlds explains each issue in plain language and hands you the fix, so the person who owns the app can act on it.
Your code and your accounts stay yours
The audit is read-only and you publish every change yourself. Plans are month to month and you can cancel from your account settings at any time. Annual Pro includes moving your database, logins, and hosting onto accounts in your own name.
Priced like a tool, not a hire
Start free, then Starter from $25 a month and Pro from $180 a month. A fractional CTO or an agency retainer is the right call at the right stage; BWorlds keeps the checks running until your app earns that hire.
BWorlds vs a fractional CTOAn SDK you can read
The browser SDK that sends monitoring signals to BWorlds is published under the MIT License. Anyone can read the code behind uptime heartbeats, error capture, session replay, and access gating before installing it.
LaunchKit on npmCustomers
Who uses BWorlds
Everyone who has built an app with AI that other people now depend on.
Solo builders
People who built an app with Lovable, Bolt, Replit, Base44, or Claude Code and now have real users on it.
Start freeStartups
Small companies whose product is an AI-built app used by paying clients, before their first engineering hire.
BWorlds for startupsAgencies and consultants
Studios and freelancers who build apps for clients with AI and keep them running after handoff.
BWorlds for agenciesCompanies
Organizations whose employees build internal apps with AI and need one view of every app and its quality.
BWorlds for enterprise
In production today: The Good Fab, a French B Corp whose team and suppliers run their production tracking on an app its co-founder built with Lovable, and insAIt, an AI market research platform for SMEs run by a solo founder. Read their stories.
Founders
The team behind BWorlds
Tools such as Lovable, Bolt, Replit, Base44, and Claude Code let one person turn an idea into a working application in days. When real users arrive, that builder also becomes responsible for security, data protection, errors, operating costs, and every change that could break an existing feature.
Emmanuel Marboeuf and Dorian Ouvrard founded BWorlds in April 2026 after seeing the same production work appear around every launch. They built it so the checks an experienced technical lead would run keep running after launch, instead of being commissioned after an incident. BWorlds is a founder-led team based in Nantes, France.
Emmanuel Marboeuf
Co-founder
Emmanuel spent three years in cyberdefense, then co-founded a SaaS company in the United States and led its engineering team for ten years. At BWorlds, he brings that production experience to builders shipping with AI.
Dorian Ouvrard
Co-founder & CTO
Dorian has worked across software engineering, technical leadership, and applied AI. Alongside BWorlds, he co-runs the GenAI Nantes meetups, which bring the local community together around practical generative AI work.
Working with us
How BWorlds works
Onboarding
Sign up, paste your app’s link, and get a first read in minutes. Then connect your code for the full audit, or fix the most critical finding right away.
Monitoring setup
Install the LaunchKit SDK in your app to turn on uptime, error, and session monitoring. Connecting your repository lets BWorlds recheck every change you publish.
Where you hear from us
Findings and alerts arrive in the BWorlds app and by email. For anything else, write to contact@bworlds.co or book a call from the contact page.
Contact BWorldsWho you work with
The product does the audit and the watching. Support, onboarding calls, and Enterprise setups are handled by the founding team in Nantes. Enterprise plans come with guaranteed response times.
At a glance
Key facts
- Company name
- BWorlds (legal entity: BWorlds SAS)
- Type
- Service as a Software
- Founded
- April 2026
- Founders
- Emmanuel Marboeuf (co-founder), Dorian Ouvrard (co-founder and CTO)
- Headquarters
- 4 rue Voltaire, 44000 Nantes, France
- Registration
- RCS Nantes 103 189 627
- Website
- www.bworlds.co
- Core offering
- Audit, 24/7 monitoring, and guided fixes for apps built with AI
- Pricing
- Free (1,000 credits a month), Starter from $25 a month, Pro from $180 a month, Enterprise custom
- Contract terms
- Monthly or annual (two months free); cancel any time from account settings; Enterprise on contract
- Services
- App audit, uptime monitoring, error monitoring, session replay, fix prompts and fix verification, status page, Trust Page, migration to your own accounts (annual Pro)
- Communication
- In-app, email alerts, contact@bworlds.co
- Apps checked
- Hundreds of AI-built apps
- Notable clients
- The Good Fab, insAIt
- Alternatives
- Lovable’s built-in security tools, Snyk, Aikido, Sentry, Better Stack, fractional CTOs, development agencies
- Open source
- LaunchKit browser SDK (MIT License)
- Social
- BWorlds on LinkedIn
FAQ
Frequently asked questions
What is BWorlds?
BWorlds is engineering that never sleeps, for every app. It audits apps built with AI, watches them in production with uptime, error, and session monitoring, and turns what it finds into fixes you apply in your own AI tool.
Who founded BWorlds, and where is it based?
BWorlds was founded in April 2026 by Emmanuel Marboeuf and Dorian Ouvrard. The company, BWorlds SAS, is based in Nantes, France.
Is BWorlds an agency or a software product?
BWorlds is a software product. The audit and the monitoring run automatically, and you stay in charge of your code and of every change you publish.
Does BWorlds replace Lovable, Bolt, or Replit?
No. You keep building in the tool you already use. BWorlds runs alongside it and takes over what happens once the app has real users: checking it, watching it, and telling you what to fix.
How is BWorlds different from Lovable’s built-in security scan?
Lovable’s tools only cover apps published on Lovable. BWorlds covers every AI builder and host, adds uptime, error, and session monitoring, and keeps your app’s history when you switch tools.
Do I need a developer to use BWorlds?
No. Every finding comes with a plain-language explanation and a prompt to paste into your AI tool. When you do hire a developer, they join your account and pick up everything your app has already recorded.
Can BWorlds see my users’ data?
The audit does not store your users’ personal data. Session and error data collected by the SDK belongs to you, BWorlds processes it on your behalf, and password fields are masked.
How much does BWorlds cost?
BWorlds is free to start with 1,000 credits a month. Starter begins at $25 a month, Pro at $180 a month, and Enterprise is priced per company.
The company
BWorlds SAS, registered in Nantes.
4 rue Voltaire, 44000 Nantes, France · RCS Nantes 103 189 627