Technical audit for apps built with AI
Is the app you built with AI
safe to launch?
NextSense audits apps built in Lovable, Bolt, Replit, Cursor and tools like them. An engineer reads the code, writes down what is broken or exposed in plain English, and plans what to do next. If we carry out the fixes, the audit is free.
The call costs nothing. A small fixed fee for the audit, waived if we do the fixes.
Findings 5
Ready for real usersNot yet. Two fixes first.
Finding 1 of 5
The payment key is visible to every visitor
- What we found
- The secret key for the payment provider is included in the code sent to each visitor’s browser.
- What could happen
- Anyone who opens the page can copy it and issue refunds or charges as the business.
- What we would do
- Move the key to the server, replace it with a new one, and check the payment log for misuse.
- Severity
- Critical
- Area
- Keys and passwords
- When
- Fix now
- Reference
- F-01
We read what these tools writeLovableBoltReplitCursorv0Claude CodeBase44Windsurf
What is going wrong?
Select what is true of your app. Each one has a cause somewhere in the code.
Seven questions the audit answers.
In this order, because the first two can hurt you soonest.
Can a stranger copy my keys?
We look for passwords, API keys and payment keys left where any visitor can read them.
Can one customer see another customer’s data?
We test whether each record is tied to its owner, or open to anyone who signs in.
If the database vanished tonight, what is left?
We check how the data is stored, whether it is backed up, and whether a backup can be restored.
Can someone skip the checkout?
We follow a payment from the button to the bank and look for ways to skip, repeat or fake it.
Why does every fix break something else?
We read how the code is organised and find what makes it brittle.
What will it cost with ten times the users?
We work out what the app costs to run today and where the bill grows.
What is missing before real people rely on it?
Hosting, domain, error alerts, and the gaps nobody has prompted for yet.
A report you can read.
It is yours whether or not you hire us. Take it to another developer, or back to your AI tool.
Findings, ranked by severity
Each one says what is wrong, where it is, and what could happen if it stays. Critical items come first.
Written in plain English
No jargon without an explanation next to it. If a finding needs a technical term, the report says what the term means.
A plan for what to do next
What to fix now, what can wait, and what to leave alone. Each fix carries a price, so the plan is something you can decide on.
A call to walk through it
An engineer goes through the report with you and answers questions until it makes sense.
Fix it with us
and the audit is free.
Only want the audit
A small fixed fee, agreed on the call before any work starts. You keep the report and the plan, and owe nothing further.
Want it fixed
The audit fee is waived and you pay for the development only. Each fix is priced in the report, so you choose which ones we do before anything is billed.
Four steps. You decide at the last one.
Book a call
Thirty minutes. Show us the app and say where it hurts. We tell you honestly whether an audit is worth paying for.
Share the code
Read-only access is enough. We show you how to grant it from the tool you built in. Nothing is changed during an audit.
Receive the report
On the date agreed on the call, with a second call to walk through the findings.
Decide
Fix it with us and the audit fee is waived. Or keep the report and take it to anyone you like.
The people reading your code built a marketplace that reached 100,000 users in its first year, and a health wallet 25,000 people use. NextSense has been building software since 2016, with more than 25 engineers.
Asked before most calls.
What is a vibe-coded app audit?
It is a review of an app that was built by prompting an AI tool. NextSense engineers read the code and the setup behind it, list what is broken, exposed or fragile, and write a plan for what to do next. The report is written for someone who does not code.
How much does the audit cost?
The audit is a small fixed fee, confirmed on the call before any work starts. If you then ask us to carry out the fixes, the audit fee is waived and you pay for the development only. The first call costs nothing.
I am not technical. Will I understand the report?
Yes. Every finding is explained in plain English, with what it means for you and your users. An engineer also walks through it with you on a call.
What do you need from me?
A link to the app and read-only access to the code. Most AI builders can export the project or connect it to GitHub in a few clicks, and we show you how. We do not change anything during an audit.
Which tools do you work with?
Lovable, Bolt, Replit, Cursor, v0, Claude Code, Base44, Windsurf, and others. Whatever the tool, what it produces is ordinary code, and ordinary code can be read.
Will you tell me to rebuild everything?
Only if that is true, and then the report says why. Most apps need a short list of fixes. The report separates what must be fixed from what can wait.
Can I keep building with AI afterwards?
Yes. Many people fix the critical findings with us and carry on building in the same tool. The report includes what to ask the AI for, and what to stop it from touching.
Who owns the code and the report?
You do. The code stays in your accounts, and the report is yours whether or not you work with us again.
My app is small and only I use it. Is an audit worth it?
Often it is not, and we will say so on the call. An audit earns its fee once other people, their data or their money depend on the app.
Bring the link.
We will read the code.
On the call you show us the app and say what is going wrong. We ask who uses it and what it stores. You leave knowing whether an audit is worth it, and what it will cost.
Thirty minutes. No charge.