Your iOS 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 12 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.

Vibe Code Audit for iOS

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.

What AI generates and nobody reviews

Security breaches
45% of AI-generated code contains vulnerabilities. In iOS, the most common: API keys hardcoded in source, tokens in unencrypted UserDefaults, HTTPS disabled (NSAllowsArbitraryLoads), and sensitive data stored outside the Keychain.
Memory leaks and performance
AIs create retain cycles in closures (forgetting [weak self]), do not cancel Combine subscriptions, launch Tasks that never complete, and place heavy work on the main thread. Result: your app drains battery, freezes and Apple rejects it.
Deprecated APIs and obsolete code
AIs generate NavigationView (deprecated since iOS 16), ObservableObject instead of the @Observable macro, foregroundColor() instead of modern alternatives, and completion handlers instead of async/await.
App Store rejection
Apple rejects 25% of apps it receives. Most common causes in vibe-coded apps: crashes in untested edge cases, incorrect privacy labels, missing PrivacyInfo.xcprivacy, and minimum functionality (Guideline 4.2).
Non-existent accessibility
AI hardcodes font sizes instead of using Dynamic Type, omits accessibilityLabel on icon-only buttons, and creates buttons with onTapGesture() instead of Button. Since June 2025, the European Accessibility Act (EAA) requires apps to be accessible. Fines reach one million euros.
Architecture that does not scale
Everything in one file. 500-line views. No layer separation. No tests. No dependency injection. It works for a prototype, but when you need to add features every change breaks something.

Vibe coding is fast. The problems it leaves behind, too.

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, ObservableObject, etc.)
  • Dynamic Type vs. hardcoded font sizes
  • Accessibility labels, traits and focus order
  • Dark mode, iPad and orientation compatibility

Choose the audit level you need

Quick Scan

Security & App Store

0
price to be confirmed

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

0
price to be confirmed

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

0
price to be confirmed

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.

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 service — we already know your codebase better than anyone.

iOS Native Development
iOS Expertise
Mac Development Setup

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 does wrong in Swift (that you cannot see)

For CTOs and tech leads who want to understand the specific technical patterns we look for:

NavigationView instead of NavigationStack

Deprecated since iOS 16. AI uses it because it has more examples in its training data.

ObservableObject + @Published instead of @Observable

The @Observable macro (iOS 17+) is more efficient and simpler. AI generates the old pattern by default.

DispatchQueue.main.async instead of @MainActor

When AI encounters concurrency errors, it falls back to GCD instead of using the modern actor system.

Computed properties in views instead of sub-views

Breaks @Observable optimisation and creates views that are impossible to reuse.

onTapGesture() instead of Button

Breaks VoiceOver, eye tracking on visionOS, and standard iOS haptic feedback.

font(.system(size: 17)) instead of .body

Hardcoding font sizes breaks Dynamic Type and violates the EAA.

Closures with strong self in Tasks

Retain cycles that cause invisible memory leaks until the app runs out of RAM.

Everything in one file

Slow builds, impossible merges, and zero possibility of unit testing.

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

Testimonials

“ 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. ”

“ 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. ”

“ 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. ”

“ 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. ”

“ 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! ”

“ 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. ”

“ 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. ”

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Frequently asked questions

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.