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Job Success
Mobile app development · iOS & Android
Two platforms is a budget problem, not an engineering one.
iOS and Android from a single codebase, published under your developer account, on a fixed price agreed before anything starts. More than twenty apps I have built are live in the App Store.
20+ apps live in the App Store 1 codebase, both platforms
The parts that cost you money
01
Two codebases you are paying for twice
Native iOS and native Android means every screen is built twice, every bug is fixed twice, and the two drift apart between releases. For the kind of app most operators need, that is double the cost for a difference nobody using it will notice.
02
The estimate moves once work starts
An hourly quote with no fixed scope is a number that only goes one way. You find out what the app costs at the end, which is exactly when you have the least leverage to do anything about it.
03
Nothing works without a signal
Apps for people who are out of the office spend part of every day on a bad connection. If the app is a thin shell over an API, it stops being useful in a basement, a rural route or a loading dock — which is where the work happens.
04
You cannot get into your own stores
Builds published under a contractor’s developer account are a hostage situation waiting to happen. So are apps you cannot rebuild because nobody handed over the signing keys, the repo or the deployment.
The system that fixes it
One codebase, both platforms
Flutter or React Native, chosen for the project rather than out of habit. iOS and Android ship from the same source, so a change lands in both and the two cannot diverge between releases.
Offline-first where the work is offline
Local state that survives a dead signal and syncs when it comes back, rather than an app that shows a spinner in the one place it needs to work. This is the difference between an app your team uses and one they stop opening.
The store submission is part of the job
Listing, screenshots, privacy declarations and review responses are included, and the app goes out under YOUR developer account. More than twenty apps I have built are live in the App Store, so the review process is familiar ground.
A fixed price, and the code afterwards
A written scope with a fixed number before anything starts. Source, accounts, signing keys and deployment handed over on delivery, with no retainer required to keep any of it running.
What this page is not claiming
This is app development, not app marketing. I can get a well-built app into the stores under your account; I cannot make people download it, and anyone promising installs alongside a build quote is selling you two things and is probably good at neither. Games and heavy real-time 3D are also outside this — the stack here is business and consumer utility apps.
Closest thing I've already shipped
Live · App Store Ecommerce
Darloo
Marketplace app, App Store and web
Flutter · Firebase
Read the build → Live · App Store Consumer apps
Boulangez
Published cross-platform build
Flutter · Firebase
Read the build → Live · App Store AI & consumer health
TraceVita
AI nutrition and wellness, live
Flutter · AI/LLM · Firebase
Read the build →Asked before every build
Flutter or React Native — how do you choose?
Flutter for anything with a lot of custom UI, heavy device integration or mapping, which is most of what I build. React Native where the app leans on an existing JavaScript codebase or a team that already writes React. If your project genuinely needs full native, I will say so rather than take the work.
What does an app cost?
A focused app for one workflow is $3,500 to $7,500. A multi-role platform with admin, technician and customer surfaces starts around $9,000, and the largest single build to date was $13,500. Those hold unless the scope moves, and the scope is written down before anything starts.
Will the app be published under my account?
Yes, and that is the default rather than something to negotiate. Your Apple and Google accounts, your listing, your signing keys. It is also why the App Store figure on this site is phrased as apps I have built that are live rather than apps on my own developer page — most of them are not on mine, by design.
Can you take over an app somebody else started?
Often, yes, and that has its own page. A stalled build gets a paid code review first, which tells you whether it is worth saving before either of us commits to a rescue. Sometimes the review concludes it is not, and you are told that plainly.
Twenty minutes, your morning, no pitch deck.
I work 8am – 12pm US Eastern and replies typically land within ~2 hours. Bring the problem, not a spec — the first call is scoping, and it is free.