Deliver an app that has been checked
Security, data separation and access, verified before the client gets the keys.
BWorlds for agencies
Building is cheap. Running it for clients isn’t.
You build client apps with AI and hand them over. BWorlds audits each one before delivery, watches it in production, and keeps it working as your client list grows.
Read-only audit, your code stays yours. The demo is thirty minutes with Emmanuel, cofounder and ten years technical director of a US SaaS.
You build for your clients.
BWorlds covers what happens after publish.
Lovable
Bolt
Replit
v0
Base44
Claude Code
After you hand it over
Keep the work after delivery, and the margin with it.
The build already stays in-house. So does the audit before handoff, the fixes after it, and the app watched while your client uses it.
Keep the margin you used to subcontract
The build stays in-house. Upkeep stops going to a dev shop.
Stop paying three days for a ten-minute change
Fixes come ready for your AI tool. No booking, no day rate.
Answer the client’s IT before they ask
Their tech advisor reads a report instead of taking your word.
Stand behind the app a year later
Every client app stays audited and watched, month after month.
What you actually get
Every client app in one workspace.
You own the client and the product. BWorlds covers what happens after publish: the audit before handoff, the monitoring after, and the fixes in between. Building stays in your AI tool.
Fix it without booking anyone
Every finding comes with a BWORLDS fix for your AI tool.
See every client app at once
One list, each app with its quality level and what is open.
Add client apps without a price change
Unlimited apps on every plan. Credits are the only meter.
The report
Proof you can put in front of the client.
Each app is audited across seven areas and fixed to a quality level before handoff. What was verified becomes a report you hand over, and it runs again every time the app changes.
SecurityData integrityPerformanceReliabilityCost controlCompliance and privacyCode quality
Audit report
clientapp.com
Audited by BWorlds
- No keys or secrets exposed in the browserSecurity
- One client’s users cannot read another’s recordsData integrity
- Uptime and errors monitored around the clockReliability
- Personal data mapped, tracking waits for consentCompliance
- Rate limits on public endpointsOpen
- Backups tested by restoring themOpen
Built from the app’s own results, open items included. You hand it to the client as it is.
After publish
Know it broke before the call.
Uptime checked around the clock, every error caught with the session that hit it, and a replay of what the user did. Across every client app in the workspace.
Know if a client app is down
Checked around the clock from outside, across the whole portfolio.
See which error to fix first
Ranked by impact and tied to the change that caused it.
Watch what the user actually did
Replay the session behind a failure, click by click, before you answer.
Confirm the fix worked
BWorlds rechecks the app after you publish and closes the finding.
Audit every client app on the free plan.
One person, no limit on apps, no card. Run the whole audit on a live client app before you decide anything.
Handoff and ownership
The app can leave with the client.
Clients ask for their app on infrastructure they own, or on sovereign hosting. A growing app has to leave a closed backend before a developer can work on it. That migration is included in the annual Pro plan.
Move the app onto accounts the client owns
Database, logins and hosting move off a closed backend.
Bring your freelance in for free
They join the workspace, read the audit, and start with context.
Give the client’s developer the same view
Findings, errors and sessions, so the handoff is not a document.
Never pay per seat
Pro carries unlimited invitations. Nobody is billed by the head.
The same review, on every client app.
Every audit runs on playbooks built from how experienced engineering teams work: separating customer data, sizing a database, controlling cloud and AI costs, reviewing code before it ships. The first client app and the twentieth get the same review.
BWorlds
Get the App Ready for Handoff
Emmanuel Marboeuf
Co-founder of BWorlds. 10 years as a CTO, cyberdefense background.
The full pre-delivery review: we map the client app quietly, ask you what can never break for them, then dig where their business is actually exposed. What comes back is a ranked fix list you can work through.
BWorlds
Keep Shipping Without Breaking Things
Dorian Ouvrard
Co-founder of BWorlds. AI engineer and tech lead.
A structure review of what the AI built: components doing too many jobs, the same logic written three ways, risky dependencies. So next month’s small change does not topple the last ten.
BWorlds
Never Explain a Five-Figure Bill
Emmanuel Marboeuf
Co-founder of BWorlds. 10 years as a CTO, cyberdefense background.
Hunts down every way a client app can spend money without asking: AI keys visible in the code, paid features with no caps, uploads with no limits. Each leak closed and verified shut.
BWorlds
Stop Burning Credits on Failed Fixes
Dorian Ouvrard
Co-founder of BWorlds. AI engineer and tech lead.
Audits what makes building with AI expensive: oversized components the AI rereads on every prompt, the same logic in three places, fixes that keep breaking something else. Clean structure makes every prompt cheaper.
BWorlds
Make the App Feel Fast
Dorian Ouvrard
Co-founder of BWorlds. AI engineer and tech lead.
Finds the slowness their users feel: pages that load everything before showing anything, heavy code shipped to every visitor, requests that run one by one. Slow is the first thing a client notices.
BWorlds
See What a Stranger Can See
Emmanuel Marboeuf
Co-founder of BWorlds. 10 years as a CTO, cyberdefense background.
A read-only pass over everything the client app shows the internet: exposed keys, customer data readable without login, doors locked only in the browser. Every claim verified, nothing touched.
BWorlds
Catch What a Publish Breaks
Dorian Ouvrard
Co-founder of BWorlds. AI engineer and tech lead.
Errors, live user sessions, uptime and the latest changes, read together. When a publish quietly breaks sign-in, you hear it in minutes with the exact change that caused it, before your client does.
BWorlds
Keep One User Out of Another’s Data
Emmanuel Marboeuf
Co-founder of BWorlds. 10 years as a CTO, cyberdefense background.
Verifies the walls between the app’s users: who can read, change or delete which records, tested from the outside and traced in the code. The gap we find most often in AI-built apps.
BWorlds
Survive the Growth Spurt
Dorian Ouvrard
Co-founder of BWorlds. AI engineer and tech lead.
Spots what works with ten users and collapses with a thousand: pages that load whole tables, lists that query row by row. Fixed in impact order, before growth turns into your client’s first outage.
BWorlds
Stay Right with Privacy Law
Emmanuel Marboeuf
Co-founder of BWorlds. 10 years as a CTO, cyberdefense background.
What personal data the app collects, where it goes, and whether tracking waits for consent. Reviewed before your client, their partner or a regulator asks the question.
Pricing
Priced by credits, never by apps or people.
Every plan takes unlimited apps, and nobody is billed per seat. What you spend follows how much work BWorlds does on the apps. The right tier is set in the demo.
Free
$0/ mo
Audit every client app, no limit on apps, one person. The way in.
Starter
From $25/ mo
Everything in Free, plus alerts, 90 days of history, and one collaborator.
Pro
From $180/ mo
$150 a month billed annually, two months free, unlimited invitations, migration included.
What you bill your client is yours
Agencies put this on the invoice as a monthly retainer of a few tens of dollars per client app, as a setup fee plus a recurring line, or as a share of the project. You set the price, and BWorlds never bills your client.
Deliver the next client app with proof.
Thirty minutes with Emmanuel. We audit one of your client apps together and set the tier that fits.
The questions agencies ask.
Some clients do have that. Most who ask an agency for an app have nobody watching it once it is live. BWorlds is built for agencies that used to subcontract development, not for IT services firms with their own engineers. When a client does have an IT team, invite them into the workspace and they read the same findings.
No. You own the client and the product. BWorlds covers what happens after publish: the audit, the monitoring, the fixes. If you have people, they get the workspace. If you do not, this is the capacity you were subcontracting.
No. The report is a ranked list of what to fix and in what order, with instructions ready to paste into your AI tool.
We catch the real traps first: exposed keys, an open database, broken access between users, no monitoring. We do not sell SOC 2 or a pentest, and the report says exactly what was checked.
You can. You then run six tools you did not choose and maintain them for every client app. BWorlds puts the audit, the fixes and the monitoring in one place, and runs the same review on every app.
The audit is read-only. Fixes are BWORLDS fixes: you apply them in your AI tool, and BWorlds rechecks the app once you publish.
Not shipped today. You run every client app from your workspace, and the report is what the client sees. If a client-facing view matters to your offer, bring it to the demo and we work out what it would take.
The audit reads your code and your endpoints to find the risks. Session recording is switched on deliberately, and input fields can be masked, so what your client’s users type never reaches the recording. What is recorded stays in your workspace, visible only to the people you invite, and nothing is published.
They still fit. Invite them into the workspace for free and they start from the audit instead of a handover call. What changes is that small changes after delivery stop waiting on their calendar.
You set your own price. Agencies bill it as a monthly retainer per client app, as a setup fee plus a recurring line, or as a share of the project. BWorlds never bills your client.
Building for your own company’s teams? Enterprise. Founding team with paying customers? For startups. Building on your own? Builders.