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12+ years of experience · Android & iOS

You dream it.
We build it.

Custom Android and iOS mobile app development for businesses – from design to Google Play and App Store launch, with transparent pricing.

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King DroidCustom mobile app development
Our apps
DirtMapAndroid · iOS · Web
FoaieLiveAndroid · iOS · Web
Felcsíki FalnivalóAndroid · iOS
DiagNovaAndroid · iOS

What we're great at

End-to-end digital solutions, from design to launch.

Mobile app development

We build native Android (Kotlin) and iOS apps, as well as cross-platform solutions that reach the market quickly. From stable, maintainable code to publishing on Google Play and the App Store, we handle everything.

UI/UX design

We design user-friendly, clean interfaces that are intuitive from the very first use. You approve the screen designs before development begins, so there are no surprises at the end.

Maintenance & support

We don't leave you on your own after launch: we deliver updates, bug fixes and new features. We respond quickly – in English, Hungarian or Romanian – to keep your app up to date and secure.

Our work

A selection of our own published apps.

DirtMap

Offroad navigation · Android, iOS, Web

An off-road and overland navigation app: offline maps, GPS track recording, convoy tracking with push-to-talk communication, route videos and OBD-II vehicle diagnostics.

FoaieLive

Mileage-log software · Android, iOS, Web

Automatically generates ANAF-compliant waybills (foi de parcurs) for Romanian businesses based on GPS: route tracking, fuel receipt scanning and PDF generation.

Felcsíki Falnivaló

Food ordering · Android, iOS

A local food-ordering app for the Felcsík region – with simple order placement, straight from your phone.

DiagNova

Car diagnostics (OBD2) · Android, iOS

OBD2 car-diagnostics app: live engine data, reading and clearing trouble codes (DTC), guided repair and fuel-economy analysis.

How we work

A transparent process from idea to successful launch.

01

Consultation

We understand your business goals and assess your needs.

02

Design

We create mockups for your approval.

03

Development

We write the code and test continuously in the background.

04

Launch

We upload to the Google Play Store and the App Store.

Why King Droid?

King Droid is a mobile app development company based in Szeklerland, Transylvania (Romania). With over 12 years of experience we build mobile apps – typically for US clients – and several of our own published apps carry our name (DirtMap, FoaieLive, Felcsíki Falnivaló).

We believe in transparent work. We provide a quote calculated in advance, keep in touch with you in English, Hungarian or Romanian, and hand over the source code at the end of the project – your app stays yours, with no lock-in to any closed system.

  • 12+years of experience
  • USinternational clients

Frequently asked questions

The most common questions about mobile app development.

How much does it cost to develop a mobile app?

The price of developing a mobile app depends on several factors: the number of features, the complexity of the design, and whether the app is built for Android, iOS or both platforms. A simpler MVP app is significantly more affordable than a complex system that requires a custom backend and external integrations. We provide a personalised quote for every project once we understand your ideas and target audience.

How long does it take to develop a mobile app?

Developing a mobile app – from design to publishing on the App Store and Google Play – takes on average 2–4 months, while a simpler MVP app can be ready in as little as 4–6 weeks. The exact timeline is determined by the number of features, the platforms (Android and iOS) and any external integrations. We provide a detailed schedule at the start of the project.

Should I choose a native or a cross-platform app?

Native development (Kotlin for Android, Swift for iOS) delivers the highest performance and the best platform experience, so we recommend it for complex apps. Cross-platform technologies such as Flutter and React Native build the Android and iOS app from a single shared codebase, making app development faster and more cost-effective. We always recommend the right approach based on the project's goals and budget.

Can Android and iOS apps be developed at the same time?

Yes, the Android and iOS apps can be developed in parallel within a single project. For this we most often use cross-platform technology (Flutter or React Native), which builds the app for both platforms from a shared codebase, significantly reducing development time and costs. This way your app can be available in both Google Play and the App Store at the same time.

What does the mobile app development process look like?

Our mobile app development starts with a joint consultation and needs assessment, followed by the specification and the design and approval of the UX/UI. Next comes the actual development and continuous testing, and finally publishing to the App Store and Google Play. We consult with you regularly throughout the entire project.

Who owns the source code of the finished app?

Ownership of the finished mobile app and the full source code belongs to the client once the project is completed and payment has been made. We hand over the entire codebase and the necessary documentation, so you are not locked into any technological dependency on us. You can continue developing your app later with anyone, without restriction.

Do you provide maintenance and support after the app is finished?

Yes, we provide ongoing maintenance, support and further development for your mobile app even after launch. This includes bug fixing, adapting to new Android and iOS versions, and building new features. We set out the support details in a package tailored to your needs or in a monthly retainer.

How do I get started and request a quote?

The easiest way is to email us at info@kingdroid.eu or fill in the quote request form on our website, describing your idea in a few sentences. We then discuss the details in a free, no-obligation consultation and prepare a personalised quote. If your project is still just an idea, we're happy to help shape the concept too.

Ready to make it happen?

Don't let your idea stay just an idea. Let's build it together!

Request a quote today

Get in touch

Fill in the form or reach us using the details below. We reply within 24 hours.