Your app makes money now. Find the holes first.
Coding agents write code that works. They don't check whether a stranger can read your users' data, and neither did you, because you never read it. I check, and then I fix what I find.
Book the $950 auditIf I find nothing worth fixing, you get the whole $950 back. You keep the report.
Free 15-minute call first. Paid up front, then I start. Done in 5 business days.
I'm Nate Parker, a senior software engineer. I've found real vulnerabilities in widely used open-source code.
What I look for first
Whichever tool wrote it, the same handful of mistakes come out. I check all of these and more.
- Secret keys in public codeAnyone can open your site's code and copy them.
- A database anyone can readThe login works, but the data behind it isn't locked.
- Pages that skip the login checkType the right address and you're in someone else's account.
- Payments that can be fakedYour app believes a message saying someone paid, without checking it's real.
- No limit on your AI billOne stranger with a script can run it up overnight.
- Code nobody has ever readThe agent wrote it, it worked, and it shipped. What else it wrote went live too.
What you get
- Fixed, not just foundNo list of homework. I make the fixes, as separate changes you can review and undo.
- A report you can readWhat I found, what I fixed and what it means, without jargon.
- Proof you can showA dated page saying your app was independently reviewed, to link from your site.
- 30 days of questionsAsk me anything about your app's security after we're done.
What lands in your inbox at the end
Independent security review: Tallyroom
- The short version
- What I looked at
- What I found
- What I checked and found nothing wrong with
A real one, start to finish. Read it before you spend anything.
Security audit, $950 flat fee
Book the $950 auditHow it goes
- Tell me about your appWhat it does and what it's built with. I reply within 24 hours, usually much sooner.
- Give me accessCode, hosting and database, read-only to start. NDA if you want one.
- I review, fix and reportWithin 5 business days. We go through it together on a call.
Introductory price for my first ten clients. Goes up after that.
For one app built with an AI tool. If yours is unusually large, I'll say so and quote before we start.
- Full review of code, database and hosting
- Fixes included
- Plain-English report
- "Independently reviewed" page for your site
- 30 days of follow-up questions
If I find nothing worth fixing, you get the whole $950 back. You keep the report.
Free 15-minute call first. Paid up front, then I start. Done in 5 business days.
Why it's $950 and not $9,000
Their number buys a team, a sales process and an app with dozens of roles built over years. Yours is one app, built in weeks, reviewed by one person you deal with directly.
Figures from 2026 penetration testing pricing guide. Not my former prices: I have never charged them.
Who you're hiring
For five years I've built and defended the platform at a healthcare software company, where security is a large part of my job. I'm also the security engineer for a B2B software startup, and I've found real vulnerabilities in widely used open-source code. I've built, shipped and sold my own software too, so I know what it's like when the app is your income. You work with me directly.
Across my professional security work, not App Locksmith alone. The clients are under NDA, so no names, ever — including yours.