iOS AI Code Audit for Vibe-Coded Apps

Your app was built with AI. Are you sure it works correctly?

41% of code written today is generated by AI. Tools like Cursor, Copilot, Claude Code, Bolt or Lovable let you build apps in hours instead of months. The problem is what you cannot see: security breaches, memory leaks, deprecated APIs, code Apple rejects, and an architecture that collapses when you try to scale.

At AtalayaSoft we audit and fix iOS apps built with vibe coding. Our iOS architect, Francisco José García Navarro, has spent over 11 years working exclusively in native iOS and over 25 years in software development. He has designed architectures for apps with hundreds of millions of users — Zara/Inditex (218M), Banco Santander (15M), AXA, Juegos ONCE. He knows exactly where AIs fail when generating Swift code.

We don't sell fear. We sell certainty. After our audit you will know exactly what problems your app has, which are critical, and how to fix them.

Francisco José García Navarro, senior iOS architect at AtalayaSoft, analysing iOS app architecture on a whiteboard

This service is for you if...

You are a CTO or tech lead and your team uses AI to write iOS code

Your team uses Copilot, Cursor or Claude Code daily. Code comes out fast, but nobody reviews what the AI generates with the depth that a production app requires. You worry about security, accumulating technical debt, and Swift Concurrency warnings nobody understands.

You get: A deep technical audit with a severity-prioritised report and a remediation roadmap your team can execute sprint by sprint.

You are a founder, PM or non-technical profile who built your MVP with AI

You built your app with Bolt, Lovable, Cursor or ChatGPT. It works on your iPhone, but you do not know if it is secure, if Apple will approve it, if it will handle real users, or if you are exposing customer data without knowing it.

You get: A clear-language report (no unnecessary jargon) that tells you exactly what is right, what is wrong, and what you need to fix before launching or scaling.

You are a tech lead and have inherited iOS code written with AI

You have joined a project where the previous team built the app with Cursor or Copilot without deep review. You need to know what is underneath before touching it: where the risks are, what can be saved, what needs rewriting.

You get: A straightforward technical diagnosis. A prioritised problem map and realistic remediation effort estimate so you can negotiate timelines and resources with solid grounding.

Dandan Chang Wang and Francisco José García Navarro, AtalayaSoft founders, working together on iOS development
Francisco José García Navarro, senior iOS architect, coding at his workstation
AtalayaSoft team MacBooks with iOS development and Apple conference stickers

Why AtalayaSoft to audit your iOS code

We are not an automated tool. We are not a web auditor that "also does mobile." We are a studio specialised exclusively in native iOS development since 2019.

Francisco has worked on Zara/Inditex (218M users, 4.8★ on the App Store), Banco Santander (15M users, 4.7★), AXA, El País and Juegos ONCE. He knows how to build an app that handles millions of users because he has done it.

We do not audit React, Flutter or backend. Only native iOS — Swift, SwiftUI, UIKit, and everything Apple requires to approve and maintain an app on the App Store.

We use Claude Code every day as a development tool. We know exactly what patterns AI generates, where it goes wrong, and how to fix it. We are not against AI — we are in favour of code that works.

What AI generates and nobody reviews

The six failure patterns we find in almost every iOS app built with vibe coding.

Security breaches

45% of AI code contains vulnerabilities.

Hardcoded API keys, tokens in unencrypted UserDefaults, HTTPS disabled (NSAllowsArbitraryLoads), sensitive data stored outside the Keychain.

Memory leaks and performance

1.7x more issues than in human-written code.

Retain cycles in closures (missing [weak self]), uncancelled Combine subscriptions, Tasks that never finish, heavy work on the main thread.

Deprecated APIs and obsolete code

41% of new code is AI-generated — trained on code from years ago.

NavigationView (deprecated since iOS 16), ObservableObject instead of the @Observable macro, completion handlers instead of async/await.

App Store rejection

Apple rejects ~25% of the apps it receives.

Crashes in untested edge cases, incorrect privacy labels, missing PrivacyInfo.xcprivacy, minimum functionality (Guideline 4.2).

Non-existent accessibility

Mandatory since June 2025 under the European Accessibility Act.

Hardcoded font sizes instead of Dynamic Type, missing accessibilityLabel, buttons with onTapGesture(). Fines up to one million euros.

Architecture that does not scale

Works in the demo, breaks in production.

Everything in one file. 500-line views. No layer separation. No tests. No dependency injection. Every change breaks something.

Sources: GitClear/Sonar 2025 (41%), Veracode 2025 testing 100+ LLMs (45%), CodeRabbit analysis of 470 PRs (1.7x), Apple App Review (~25%). Documented cases include the exposure of 18,000 user records in a Lovable app (The Register, Feb 2026) and Replit deleting an entire production database.

What we review in your iOS app

Security
  • API keys and secrets hardcoded in source code
  • Tokens and credentials stored outside the Keychain
  • NSAllowsArbitraryLoads = true (HTTPS disabled)
  • Sensitive data in UserDefaults, logs or cache
  • Input validation and injection protection
Performance
  • Memory leaks and retain cycles ([weak self] in closures)
  • Combine subscriptions without stored cancellable
  • Uncancelled Tasks in Swift Concurrency
  • Heavy work on the main thread (UI freezes)
  • Excessive battery use (location, timers, background)
Architecture
  • Layer separation (domain, data, presentation)
  • Monolithic files vs. decoupled modules
  • Concurrency patterns (legacy GCD vs. async/await)
  • Test coverage (unit, UI, snapshot)
  • Dependency management and build times
App Store & Compliance
  • Privacy labels and PrivacyInfo.xcprivacy correctness
  • Privacy policy aligned with actual app behaviour
  • Guideline 4.2 (minimum native functionality)
  • Required Reason APIs and SDK signatures
  • EAA / accessibility compliance (VoiceOver, Dynamic Type)
Native UI & UX
  • Correct use of SwiftUI vs. UIKit
  • Deprecated APIs: NavigationView (iOS 16+), ObservableObject (iOS 17+)
  • Dynamic Type vs. hardcoded font sizes
  • Accessibility labels, traits and focus order
  • Button vs onTapGesture() (critical for VoiceOver)
  • Dark mode, iPad and orientation compatibility

Choose the audit level you need

Quick Scan

Security & App Store

The essentials before publishing. Focused review of critical security breaches and the most common App Store rejection reasons. You receive a report with the 10 most serious problems and how to fix them.

  • Delivery: 3–5 business days
  • Written report with severity (critical / high / medium / low)
  • Ideal for: Pre-launch MVPs, non-technical founders, quick validation

Full Audit

The complete picture of your app

Review of security, performance, architecture, App Store, accessibility and code quality. Includes a 30-minute video call to walk through findings and a prioritised remediation roadmap.

  • Delivery: 7–10 business days
  • Detailed report + video walkthrough + remediation roadmap
  • Ideal for: Funded startups, teams looking to scale, apps with real users
Most popular

Audit + Fix

We don't just tell you what's wrong — we fix it

Full audit + correction of all critical and high-severity issues. Verification that the app is production-ready. 30 days of post-delivery support.

  • Delivery: 14–21 business days
  • Everything in the previous level + fixed code + verification + support
  • Ideal for: Apps that need to go to production now, founders who want to delegate the fix

The audit cost is deducted if you subsequently engage the fix or team integration service. You do not pay twice.

Not sure which level you need?

Write to us describing what you built with AI, how much code there is, and what worries you. Within 24 hours we will propose the right level — or tell you honestly if auditing does not make sense yet.

Get guidance, no commitment

How the process works

  • 01. Send us repository access

    Give us access to the repo (GitHub, GitLab, Bitbucket) and tell us the context: which AI tools you used, what the app does, what concerns you. No unnecessary meetings — a form and code access is enough to get started.

  • 02. We audit with expert human eyes

    We review the code line by line with 11+ years of native iOS experience. We do not use generic automated tools — we use Instruments, Accessibility Inspector, Charles Proxy, and the same profiling stack we use on apps with 218 million users.

  • 03. You receive a clear, actionable report

    Every problem classified by severity (critical / high / medium / low) with explanation, exact location in the code, and recommended fix. If you are technical, you can execute the roadmap with your team. If not, we walk you through it on the video call.

  • 04. We fix and/or integrate into your team

    If you choose level 3, we fix directly. If you prefer your team to do it, we guide them. And if you need a senior iOS developer long-term, the natural next step is our team integration servicewe already know your codebase better than anyone.

Apps where we have worked at production scale

We are not theoretical auditors. We have built and maintained iOS apps with hundreds of millions of users. That experience is what allows us to identify problems that an automated tool cannot see.

Zara
Inditex
Banco Santander
AXA
ONCE
National Geographic
FOX International Channels
El País
Repsol
Indra
Pernod Ricard
Metrovacesa
Thyssen-Bornemisza
B-FY
Destinia.com
Packlink
Legálitas
Direct Seguros
ZEAL Network SE
Alien Vault
Softtek
knowmad mood
Plexus Tech
WISE SECURITY
View all projects

Testimonials

“ I am very pleased to recommend Francisco for any position in software development, especially in the iOS field. I have been fortunate to work closely with him during his time on our development team and the various new connections we have had in the workplace, where he has proven to be an exceptional professional.

He distinguishes himself by his thoroughness and commitment to quality in every task he undertakes. His work is based on Clean Architecture and SOLID principles, which is reflected in the clarity, efficiency and maintainability of his code. These practices not only ensure the quality of the final product, but also facilitate collaboration within the team and the scalability of projects.

In addition to his technical skills, Francisco has a remarkable ability to communicate his ideas clearly and concisely. This has been particularly valuable in presenting solutions and defending his proposals, always with well-founded arguments based on industry best practices.

During his time in our team, he has proven to be an invaluable asset, not only for his talent and knowledge, but also for his positive attitude and willingness to help his colleagues. His ability to lead and collaborate has contributed significantly to the success of our projects.

In summary, I consider Francisco to be an outstanding professional who will bring value to any organisation lucky enough to have him. I am sure he will continue to be a positive influence and a driver of innovation in his next job challenge. ”

“ It is a pleasure to recommend Fran, who is a key member of the team at B-FY, serving as the lead for iOS development in Biocryptology. He is responsible for app programming and security libraries, showcasing profound technical knowledge and an admirable ability to deliver results of the highest quality.

He stands out for his diligence and responsibility, consistently meeting established deadlines. His work, both in implementing new features and enhancing security, is always aligned with the product goals and meticulously planned, enabling him to meet sprint objectives without fail.

When the iOS team expanded within the company, Fran took on the challenge of coordinating the team, leading both functional development and code migrations to Swift. His leadership has been crucial in maintaining the quality and cohesion of the product during a period of significant technological change. He consistently demonstrates a proactive and problem-solving attitude, offering innovative solutions and ensuring the team achieves collective success.

His work is impeccable, and his commitment to excellence is evident in every project. Beyond his technical skills, his approach fosters a collaborative and respectful team environment. I am confident that his analytical ability, meticulousness, and team leadership skills are a valuable asset to any company he chooses to join. ”

“ Francisco is a great professional, and this is evident in his more than 11 years of experience in the internet sector.

This extensive experience, along with his continuous desire for learning and training, makes Francisco a highly qualified professional for software development and the internet sector. The work with multiple technologies that he has done over all these years of experience broadens the range of challenges that Francisco can successfully tackle.

Additionally, on a human level, Francisco has an open character, is capable of delegating and sharing, skills that make him very capable of working in a team. Another remarkable aspect of Francisco is his initiative in sharing knowledge and learning from others, which fosters the learning of the entire group.

During the almost three years I worked with Francisco, he was a true reference for me, as well as the person who introduced me to the sector and trained me during that time. ”

“ I have been working with Fran as an Acilia resource for a couple of years, and his best qualities are his proactivity, his interest in continuous learning and staying up-to-date with web and app technologies, and his ability to work in a team, collaborating with various profiles to carry out developments. ”

“ Francisco José is a great professional and very hardworking with high motivation and a positive spirit. I appreciate that he is very calm and creates a good atmosphere within the team. ”

“ Fran is a well-trained and experienced worker, always learning new things. Very methodical in everything he does and with very clear ideas. Always willing to share his knowledge with the group. And as a person, he is an excellent guy! ”

“ Fran is a highly experienced professional who is not only contributing to our iOS app development but also to many other key areas essential for the growth of a start-up. ”

“ Francisco José is highly skilled in iOS development, and it’s evident that he is truly passionate about it. He has all the necessary hardware resources and is well-versed in agile methodologies. In our case, we worked with Trello and Excel. Communication with him is seamless, which makes it easy to resolve any questions that arise during development. I would definitely recommend him. ”

“ An example of order, seriousness, and immense love for his work. Factors that not only affect his productivity and performance but also translate into a close relationship with his colleagues, being attentive and willing to listen, debate, teach, share… undoubtedly, his desire to progress will take him wherever he wants. ”

“ When Dandan joined our team the first thing that attracted me was her curiosity for learning. She was ready to learn eagerly from everyone, from everything. And she made it, very fast. Her progress not only on Digital Marketing but learning Spanish and English was fascinating and motivating. She is passionate about what she does, but also she is open and always willing to help and to develop others work. ”

“ Dandan is one of the most capable programmers I’ve had the pleasure of working with. She never backs down from a challenge and tackles it head-on until it’s resolved and completed. She is always looking for the best way to do things. Additionally, she is a sponge for knowledge and an incredibly well-rounded individual, not only as a programmer but also possessing a set of qualities that are hard to find, which enable her to be a natural manager and leader when needed. ”

“ I have worked with Dandan for more than a year, and she has never ceased to amaze me with her professionalism, dedication, and being an excellent colleague—very friendly, cheerful, and polite. She is always willing to help, responsible, and very hardworking. I highly recommend her. ”

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The team working on your project

Frequently asked questions

Yes. We sign an NDA before accessing your repository and, if you prefer, also a GDPR-compatible DPA (Data Processing Agreement). You can send us your template or use ours. We do not start without an NDA.
It depends on the level and codebase size: Quick Scan in 3-5 business days, Full Audit in 7-10 days, Audit + Fix in 14-21 days. For codebases over 50,000 lines we adjust timelines before starting. We reply to initial requests within 24 business hours.
No. We also audit apps where the team uses Copilot or Cursor as an assistant. The problem is not using AI — it is not reviewing what it generates. If your team accepts suggestions without thorough review, the same problems accumulate.
No. We only work with Swift, SwiftUI and UIKit — native apps for the Apple ecosystem (iOS, iPadOS, macOS, watchOS, visionOS). We do not audit React Native, Flutter or web.
No. Each finding includes a plain-language explanation in addition to technical details. The video call in levels 2 and 3 is designed to walk through the problems with you and answer questions, whether you are technical or not.
Contact us for current pricing. We offer three levels depending on the scope you need (Quick Scan, Full Audit, Audit + Fix). The audit cost is deducted if you decide to engage the fix service afterwards.
Those tools generate web apps (React/Vite), not native iOS apps. If you have a web app packaged as an app (Capacitor, WebView), we can evaluate whether it makes sense to convert it to native or if Apple will reject it under Guideline 4.2. If it is already native Swift, we audit it without issue.
Yes. Level 3 includes fixing all critical and high-severity issues. If the fix requires broader work (architecture restructuring, UIKit → SwiftUI migration), we propose a remediation project or a long-term team integration.

Was your iOS app built with AI? Find out what is underneath.

Send us access to your repository and within a week you will know exactly what problems it has, which are critical, and how to resolve them.