Your app is on people's phones now. Anyone can take it apart.
A mobile app isn't a website. Once someone downloads it they can open it up and read what's inside. I check what's in yours, and what your app lets a stranger do, then I fix it.
Book the $950 mobile 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
Apps built with AI tools make the same handful of mobile mistakes. I check all of these and more.
- Keys packed inside the appAnyone can download your app from the store and read them out. Putting them in the code is not hiding them.
- A database the app talks to directlyFirebase and Supabase are wide open until someone writes the rules. In AI-built apps the rules usually never got written.
- Purchases that can be fakedIf your app is the thing that decides who paid, a modified copy can tell it everyone paid.
- A backend that believes the appYour server should check who is asking. If it trusts whatever the app sends, anyone can send it anything.
- Personal data left sitting on the phoneLogin tokens, photos and messages saved where another app, or whoever finds the phone, can read them.
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 or your listing.
- 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: Fernway
- 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.
Mobile security audit, $950 flat fee
Book the $950 mobile auditHow it goes
- Tell me about your appWhat it does, which stores it's on and what it's built with. I reply within 24 hours, usually much sooner.
- Give me accessYour code and your backend, read-only to start. A test build helps. 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, on one store or both. If yours is unusually large, I'll say so and quote before we start.
- Review of the app, your backend and your database rules
- Check of what a stranger can read inside the shipped app
- 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 built over years by people who are still there. 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.