Mobile app development help for AI builders

The last 10% of your app, handled.

Built an app with AI but stuck getting it over the finish line? I help with App Store releases, stubborn bugs, upgrades, and the technical bits that need a real developer.

You built it with AI. I'll help you ship it.

Author of a freeCodeCamp React Native course (opens in a new tab) with 450k+ views

The problem

So close. Yet somehow still stuck.

  • Your app works locally but won't build for iOS.
  • Apple keeps rejecting your submission.
  • Your AI agent keeps going around in circles on the same bug.
  • Something broke after an SDK or dependency update.
  • You need subscriptions, push notifications or native functionality.
  • Your app has launched, and now it needs looking after.

None of this means you've done anything wrong. AI tools get most of an app built, and these are simply the parts that tend to need someone who has done them before.

Services

The bits I can take off your plate.

Mostly I help people get AI-built iOS and Android apps released, fixed and kept running. Web apps, backends and integrations are on the table too.

Most requested

App Store & Google Play Releases

Help getting mobile apps built, configured, submitted and released, including TestFlight, code signing, provisioning and release builds. If Apple or Google rejects your app, I'll work out what the reviewer actually wants, fix it and help you reply. I can also automate deployments, so future releases are one step instead of an afternoon.

  • TestFlight setup
  • Code signing & provisioning
  • iOS and Android release builds
  • Store listings & submission
  • App Store & Google Play rejections
  • Expo & EAS build errors
  • Automated deployments: EAS, Codemagic, Bitrise
  • White-label and multi-app releases

Bug Fixes & Troubleshooting

Fixes for broken builds, crashes, authentication issues, failed integrations and the problems AI agents haven't been able to solve, in React Native, Flutter and web apps.

Upgrades & Features

Dependency upgrades, SDK migrations, payments, subscriptions, push notifications, native functionality and other technical improvements.

Privacy & GDPR Compliance

The technical side of privacy rules: App Store privacy labels, Google Play's Data safety form, in-app account deletion, consent before analytics, and making sure your app only collects what it needs.

Maintenance & Support

Ongoing help keeping your app stable, compatible, secure and working as platforms and dependencies change.

Mobile is my focus, but I also help with web apps, backend problems, integrations and other AI-built projects. If you're stuck on something that isn't a phone app, feel free to get in touch.

My work

Why I'm good at the last 10%.

I'm Emma, a senior React Native developer with more than 11 years' commercial experience. You deal with me directly, not an agency and not a chatbot, and this is the work I've been doing for years.

  • Teaching & mentoring

    I love teaching. My React Native course on freeCodeCamp has been watched more than 450,000 times, I've made JavaScript courses on Udemy, and I enjoy mentoring developers. For you, that means I'll explain what went wrong and how it was fixed, not just hand back code.

  • Releases at scale

    I've run white-label apps with around ten iOS and Android releases going out at once, and set up automated deployments with Expo EAS, Codemagic and Bitrise.

  • Code reviews & tech due diligence

    I've reviewed whole codebases for technical due diligence audits, so I can quickly tell you what's solid in your app and what needs fixing.

  • Agency client work

    At madewithlove, a software agency, I build React Native and Next.js apps for clients, so I'm used to clear scopes and plain-English updates.

Apps I've shipped

Mobile app

Learn English Now

The mobile learning app for Really English, an e-learning company.

What I did: I built the company's React Native app while working there from 2015 to 2022, alongside their desktop learning app in JavaScript.

  • React Native
  • JavaScript

FAQs

Questions people ask before getting in touch.

Can you help if my app was built entirely with AI?

Yes. That's the situation most people contact me in. Tell me which tools you used and where it's gone wrong, and I'll look at what's there.

I'll tell you plainly whether it's a fix, a few fixes, or whether one part is better rebuilt. How the app was made isn't something I'll judge.

Can you help me publish to the Apple App Store?

Yes, it's the main thing I do. That covers code signing and provisioning, TestFlight, release builds, your App Store Connect listing and responding to review feedback. I can also set up automated deployments with Expo EAS, Codemagic or Bitrise, so your next release doesn't mean doing it all by hand again.

I've managed white-label apps with around ten iOS and Android releases going out at the same time, so juggling several builds, bundle IDs and store listings is familiar ground.

I can't promise Apple will approve an app, because that's their decision. I can make sure the technical side is right and help you deal with whatever they send back.

My app was rejected by Apple or Google. Can you help?

Yes. Most rejections are fixable: a crash during review, missing privacy details, login or payment rules, incomplete store information, or a feature the reviewer couldn't reach.

I'll read the rejection, work out what the reviewer actually wants, fix the app or the listing, and help you write the reply. If a rejection looks wrong, I'll help you appeal it.

Can you help make my app GDPR compliant?

I can help with the technical side. That includes the privacy policy link the stores require, Apple's privacy labels and Google Play's Data safety form, in-app account deletion (Apple requires it if people can create an account), asking for consent before analytics or tracking, and checking what personal data your app collects and where it goes.

I'm a developer, not a lawyer, so I can't confirm your business is legally compliant. What I can do is make sure the app does what your privacy policy says.

Do you work with React Native, Expo or Flutter apps?

Yes. React Native is my specialism, including Expo projects and EAS builds, which are very common in AI-built apps. My React Native course on freeCodeCamp's YouTube channel has been watched more than 450,000 times. I work with Flutter apps too.

If you're using something else, ask anyway. I'll tell you honestly whether I'm the right person for it.

Can you fix a project that another developer or AI tool started?

Usually, yes. I start by reading what's there and telling you what I find before any work begins. Sometimes it's an afternoon's fix, and sometimes it's better to replace one part than keep patching it. I'll say which.

Reading unfamiliar code is something I do a lot. At a software agency I've carried out code reviews and technical due diligence audits, looking at whole codebases and writing up the risks in plain English.

Do you provide ongoing app maintenance?

Yes. Apple, Google and your dependencies keep moving, and apps that aren't looked after eventually stop building. We can agree a one-off tidy-up or ongoing support, whichever suits how you work.

Can you help with web apps too?

Yes. Mobile apps are my focus, but I'm not tied to one technology or language. I build Next.js apps for clients, and I've worked across front ends, backends and integrations for more than 11 years.

A problem in a web app, an API or another AI-built project usually comes down to the same skills: reading the code, finding the cause and fixing it properly. Send me the details and I'll tell you honestly whether it's a good fit.

How much does it cost?

It depends on what's wrong, and I'd rather not guess in a FAQ. Once you've told me what's happening, I'll explain what needs doing and agree the scope and cost with you before I start any work.

Can I pay in instalments?

Yes. If paying in one go doesn't suit you, we can split the cost into instalments. We'll agree the amounts and dates in writing before I start, and there's no interest or extra fee for paying this way.

Get help

Let's get your app over the finish line.

Tell me what you've built and where you're stuck. I'll help you work out what needs doing next.

Portrait of Emma Williams

Emma WilliamsSenior React Native developer. I read and reply to every enquiry myself.

One request: please don't put passwords, API keys, signing certificates or repository access in this form. If I need any of that, I'll tell you how to share it safely once we've talked.

Which platform?
I'll only use your details to reply to this enquiry. Privacy notice