Mickael Romaniello, the developer who builds the apps Mickael Romaniello 30 minutes, no slides, nothing to prepare.

Mobile App Development in Dublin

12 years of experience. 15+ apps delivered. One single point of contact, from concept to App Store and Google Play publication.

📱 iOS & Android 🚀 12 years experience 🇫🇷 Based in France
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In short: for your Dublin (1,173,179 residents) project in Leinster, you work directly with me, not a middleman. 12 years of experience, 15+ apps delivered, and a transparent end-to-end process.

You are based in Dublin and you have a mobile app idea.

It is the classic scenario. Enthusiasm is at its peak. You are already picturing your logo on everyone's home screen across Leinster.

The journey between an idea on a napkin and a published app on the stores is long. Very long.

Spoiler: the vast majority of app projects never reach profitability. Not because the initial idea was bad, but because the execution was a mess.


What is mobile app development?

The vocabulary hides a simple reality. Native means an app written with Apple's and Google's own tools. Hybrid means one codebase adapted to both. The back-end is the server, and the API is how the app talks to it. What matters to you is not the word but the consequence: cost, speed, and what you will be able to change later.

Three ways to build, three consequences:

  • Native: Apple's and Google's own tools, maximum performance and full access to the device's sensors. It is the choice for demanding apps, and the most expensive because the work is done twice.
  • Hybrid: one codebase for both platforms. You keep most of native's performance for a noticeably smaller budget. For most projects this is the right trade today.
  • Web app: a site adapted to mobile, nothing to install, no store review. Fast and cheap, but no notifications, no offline mode, and limited access to the phone.

My job is to point you to the one that fits your ambitions in Dublin, without charging you for a Ferrari when a reliable city car will do.

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The key point: the price depends on the technical complexity under the hood, not on the number of pages.

Mickael Romaniello
Mickael Romaniello
Mobile Product Engineer — Cannes, France

Are you having problems with your current app? Plummeting ratings? Unexplained slowdowns? They click. They quit. They forget.

It's the worst-case scenario. And that's exactly where I step in. Backed by 12 years of experience, I help businesses from Cannes rescue failing iOS and Android projects. I run the diagnosis, we identify the roadblocks, and we fix them to finally offer a smooth experience to your users.

In short: don't let a bad start ruin your idea. Let's correct the course together.

12+
years experience
15+
projects delivered
5
industries served
4.8
average rating

Why choose an expert in Dublin?

You are launching your project in Dublin.

And you are probably wondering who to work with to build your mobile app.

It is the first major decision you have to make. Some people think that to succeed, you absolutely need a big agency right around the corner. Others believe they should outsource to the cheapest team they can find overseas.

Both options come with serious tradeoffs.

A big agency will assign your project to a junior developer you have never met. An offshore team will deliver code you cannot read, three weeks behind schedule, with zero accountability.

The most important factor in the success of an app is not just the code. It is communication.

When you work with me, you get one dedicated expert with 12 years of experience and over 15 delivered projects. Not an account manager. Not a rotating team. One person who knows your project inside out.

Working with Dublin

Dublin is an hour behind me and full of companies whose head office is somewhere else, which usually means the app has to fit rules written in another country. Worth naming early: the constraint is rarely technical, it is which jurisdiction's data rules the product has to satisfy.

That question has a habit of arriving late and changing a lot. An app built for Irish users, then extended to a US parent company's customers, may suddenly need different consent flows, different retention rules and a different hosting region. None of those are difficult in themselves. All of them are painful once you have live users, because changing where data lives means migrating it, and changing what you collect means deciding what to do with what you already collected.

Dublin's concentration of large technology employers has a second effect worth being straight about: the local market for developers is competitive and expensive, and a lot of the enquiries I get are from people who have already tried to hire and found the timeline unacceptable. That is a legitimate reason to work with someone outside, and it also sets a fair expectation. I am one person. I can carry a product end to end and I can do it quickly, but I cannot replace a team, and if your project genuinely needs one I will tell you at the start.

The practical side is easy. One hour of difference means our working days are effectively the same, so questions get answered within the hour rather than the day, and a weekly call is enough structure for most builds. English is the working language throughout, which removes the small friction that translation adds even when everyone involved is competent in the other language.


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Why Invent Better?

With Invent Better you get an installable build every two weeks, even when it is incomplete. That is the difference between following a project and waiting for one. You have access to the code repository from day one, and every decision is written down rather than remembered. A disagreement surfaces after two weeks, not at final delivery.

Software development is far too often treated as a terrifying black box.

In many traditional projects, you sign a massive specification document, you pay a hefty deposit, and then you just wait. For months, you receive nothing but vague updates. A few reassuring emails. A lot of "trust us, it is coming along great."

And then the day of the final big reveal in Dublin arrives... and your heart sinks. The product looks and feels nothing like what you envisioned. But it is entirely too late, and your budget is completely gone.

The most important factor: when you work with me, that black box simply does not exist. Everything is entirely transparent.


How does a project work?

A project runs in four stages: scoping that decides what goes into the first version, mockups you handle before a line of code exists, development delivered in installable slices, then publication. What matters is not the number of stages but their rhythm.

Four stages, in this order:

  • The discovery call, thirty minutes and free. I tell you honestly whether the project stands up — and if it does not need an app, I say that too.
  • Scoping: exact perimeter, schedule, budget and technical choice, on a roadmap you keep.
  • Development in two-week cycles. Each cycle gives you a version to install on your phone, and your feedback goes into the next one.
  • Publication and follow-up. Nearly one submission in four is rejected at review (Apple, App Store Transparency Report 2024): preparing the file saves weeks.
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A transparent, iterative process with zero surprises. You see the app grow every single week.


Case study

Nothing beats a concrete example to truly understand. Here is the story of an established service company.

This business had a standard website. Their analytics showed that most their traffic was coming from mobile phones. That is a massive number. But there was a major issue. They were getting absolutely zero bookings from those devices.

Their customers were trying to book appointments, getting lost on the clunky mobile site, and giving up entirely.

The technical challenge was very real. We needed to handle a complex calendar system, secure payments, send push notification reminders, and allow multiple users to coordinate schedules.

The client wanted to build everything at once. A loyalty program, a blog, a forum, and the booking module.

I reminded them of a vital statistic: most app features are never actually used. Why spend thousands of dollars on ghost options?

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In short: we do not build everything. We build what your users actually need.


How much does a mobile app cost?

If price is your only criterion, we are probably not a good fit, and saying so early saves us both time. A cheap build is rarely cheaper overall: code written without structure becomes impossible to change, so the second version costs more than the first would have. What you are really buying is the ability to keep changing the app after launch.

If price is your one and only criterion for choosing a developer in Dublin, we are probably not a good fit to work together.

This is not arrogance. It is honesty.

Let's talk about the true value of things in our Ireland.


Industries we serve

Healthcare and Medical

The healthcare sector leaves absolutely no room for error. Building a medical app for patients or doctors in Leinster is not just about coding a pretty interface. It is about building a digital vault.

You have to seamlessly manage patient follow-ups, appointment bookings, medication reminders, and secure messaging. Strict compliance with data protection laws is non-negotiable. That is why we integrate heavy biometric authentication systems.

And let's not forget offline mode, which is absolutely vital for a rural doctor consulting in an area with poor signal.

Tourism and Travel

If you are targeting travelers visiting Dublin, your application must be their ultimate guide. And a guide that stops working the moment you cross a border is completely useless.

Offline mode is a matter of survival here to help your customers avoid roaming charges. They must be able to check a real-time itinerary or scan a QR code ticket even without an internet connection.


Frequently asked questions

Does my app need a server?

Not always, which is good news for the budget. An app that only handles its own user's data — a list, a tracker, a calculation — can keep everything on the phone and cost nothing to run. As soon as data has to be shared between people, synced across two devices, or seen by you on your side, a server is needed, and that is a cost that comes back every month.

What happens when the phone has no network?

It depends entirely on what was decided at the start, and it is one of the few choices that cannot be postponed. An app can keep its data on the device, let people work, then sync as soon as the network returns — with nobody pressing anything. It is essential the moment work happens in a warehouse, a basement, or on the road. Added afterwards, it often means rewriting half the app.

Will it work on older phones?

We pick a floor, and that choice has a price. Supporting older OS versions means more testing and giving up some capabilities. We look at who your users are: a consumer app and an internal tool deployed on a known fleet do not get the same answer. The floor can be raised later, when usage data shows nobody is left behind it.

How much space does the app take on a phone?

It matters more than people think, because a heavy app is the first uninstalled when storage runs short. The weight rarely comes from the code: it is the bundled images and fonts. Loading images from the server rather than shipping them, and serving them at the right size, often halves it. That is invisible work, and it is the work that keeps the app installed.

Are notifications free?

Technically, sending costs almost nothing. What costs is everything around it: a server to decide what to send to whom and when, and enough care not to become intrusive. It is also the easiest mechanism to waste — a useless notification is the first cause of uninstalls, and an uninstalled app does not come back. Send few and make them useful, or send none.

Can the app use the camera or location?

Yes, with the user's permission, and how you ask matters as much as the feature. A permission demanded on first launch, with no context, is refused most of the time — and once refused it is painful to recover. Asked at the moment the person understands why, it is granted. Apple also requires a written explanation for every permission, and a vague one gets the app rejected.

How do updates reach users?

Through the stores, and not instantly: Apple and Google review every version before it is published, and phones update at the pace of their own settings. So expect a share of your users to stay on an older version for weeks. That is why the server has to keep talking to previous versions, and why we avoid changes that break everything at once.

Can the app connect to the software I already use?

Often yes, and it all hangs on one thing: does your vendor provide a documented API. If they do, it is ordinary work. If they do not, or bill it per module, or refuse to open it to a third party, no app will work around that cleanly — workarounds exist and break at the vendor's next update. It is a question to put to your supplier before you put yours to me.

How is that different from an installable web app?

A website can be installed on the home screen, work offline and launch full-screen, with no store involved. It is a real third answer, and it is under-recommended because it earns less for whoever recommends it. Its limits: notifications stay restricted on iPhone, sensor access is partial, and you are not present in the stores — which matters if your customers look for you there.

Does the app need to be translated?

Only if you have an audience in another language — and then it has to be designed in, not added on. Translation is not what costs; room is. German makes labels half again as long and overflows buttons drawn for English. Leaving room from the start costs nothing; redoing the screens afterwards costs days. The legal texts and the store listing count too.

Ready to launch your app in Dublin?

You have the idea. You know your market in Leinster. Now, it is time to take action.

But not just in any random way. The key advantage of working together is absolute clarity. I will not sell you useless features. I will not make empty promises that I cannot keep.


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About the author

Mickael Romaniello — Mobile product engineer based in the South of France. 12 years building iOS, Android and desktop apps. 15+ projects delivered for startups, mid-market companies and enterprise clients. LinkedIn.

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Standards & references

Apple Human Interface Guidelines · Google Material Design · web.dev (Google) · MDN Web Docs · OWASP Mobile Top 10