Android and iOS apps people actually want to use
What we offer
Swift and SwiftUI for iOS, Kotlin and Jetpack Compose for Android, when performance, animations or deep device features matter most. Native gives you the smoothest experience each platform can deliver and first access to new platform capabilities.
One codebase for both stores using React Native or Flutter, when speed to market and budget matter more than squeezing out the last few percent of performance. For most business apps, done well, users cannot tell the difference.
A focused first version that proves your idea with real users before you invest in the full vision. We help you cut scope ruthlessly, which is the part most founders find hardest and value most afterwards.
Store accounts, submission, review compliance, screenshots and listings, and the back-and-forth with Apple and Google, handled. Rejections and resubmissions are part of the territory; we know the terrain.
Operating systems update every year and devices keep changing. We keep your app current, fix what breaks, tune performance and ship new features, so the app you launched keeps earning its place.
Where mobile apps earn their keep
The useful question is not whether you can have an app, but where an app genuinely changes the business. Patterns we see across sectors:
Retail and e-commerce. Shopping apps with loyalty, push-driven repeat purchase and one-thumb checkout. Retention lives in the app; acquisition lives on the web, and the two need to share one backend cleanly. Running our own e-commerce operations, we design apps with the operator's view of orders, stock and support, not just the shopper's view.
Booking and services. Salons, clinics, trades, fitness and hospitality, where the app removes the phone-tag: booking, reminders, payments and rebooking in a flow that takes seconds. The measurable win is fewer no-shows and a fuller calendar.
Field operations and logistics. Apps for staff rather than customers: job sheets, proof of delivery, inspections and time tracking, built offline-first because vans, sites and warehouses do not have polite Wi-Fi. Simplicity and reliability beat visual flair here, and we design accordingly.
Health, fitness and lifestyle. Habit-driven products where notifications, streaks and offline capability decide retention. These apps live or die on thoughtful UX, so design and engineering must move together, which under one roof they do.
SaaS and product companies. The mobile companion to an existing web platform, sharing accounts, data and billing with the product users already know. Done right, it feels like one product; done as an afterthought, it feels like a brochure. We build the former.
If your sector is not listed, the logic still travels: find the moment your customer or your staff need you while away from a desk, and that is where the app pays for itself.
Native or cross-platform? The honest trade-offs
This is the first real decision of any mobile project, and the answer depends on your situation, not on what an agency prefers to sell.
Cross-platform usually wins when budget and time matter, when the app is content and workflow driven, and when you need both stores from day one. One codebase means roughly one build effort and one team maintaining it.
Native usually wins when the app leans hard on performance, complex animation, or deep hardware access, when it must adopt new platform features the day they ship, or when it will be a large, long-lived product where per-platform quality justifies per-platform cost.
There are hybrid answers too, such as starting cross-platform for speed and going native later where the product proves it deserves the investment. We walk you through the trade-offs in plain language during discovery and recommend what fits your product, users and budget. If the honest answer is that you do not need an app at all and a well-built mobile web experience would serve you better, we will say that too.
How we build
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01
Discovery and UXWe map the users, the core flows and the smallest version that delivers real value. This stage kills more bad spending than any other.
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02
DesignClean, platform-appropriate interface design you approve before code is written, so there are no surprises at handover.
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03
BuildIterative development in short cycles, with a working app on your own device every couple of weeks. You see progress, not status reports.
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04
TestAcross real devices, screen sizes and operating system versions, plus the unhappy paths: bad networks, interruptions, low storage.
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05
LaunchStore submission, compliance and release management for both stores.
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06
SupportUpdates, fixes and new features on a cadence that fits how your product evolves.
What a mobile app costs, honestly
The industry-wide truth: a focused first version of a business app typically runs from the low tens of thousands of euro or dollars, and complex products with custom backends, integrations and heavy features run well beyond that. Cross-platform generally reduces cost versus building native twice. Beyond the build, plan for ongoing costs: store developer accounts, backend hosting, and maintenance as operating systems change. Anyone quoting a full custom app for a few hundred euro is selling a template with your logo on it. These are industry ranges rather than quotes; after discovery you get a fixed scope, timeline and price for your specific app, before you commit.
Ways to work with us
A tightly scoped first version to prove the idea with real users, at fixed scope and price. The lowest-risk way to enter the market.
Discovery through store launch for a defined scope, timeline and budget, including the backend where you need one.
The complete system: mobile app, API, admin panel and integrations, designed as one coherent piece by one team.
We audit an existing app another team built, give you a straight assessment, then stabilise and take it forward.
Continuous improvement after launch: analytics-driven refinement, OS updates, new features and store management, on a monthly cadence that fits your roadmap.
The backend matters as much as the app
Most apps are the visible half of a system. Accounts, data, payments, notifications and sync all live on a backend, and weak backends are why apps feel slow and break under load. This is where our engineering depth pays off: our team builds backends in Python, PHP, Java and .NET, designs APIs properly, and connects your app to existing systems, whether that is your website, your inventory, your CRM or a payment provider. One team building both halves means nothing gets lost between two vendors pointing at each other. If your product also needs a browser experience, our web app team shares that same backend.
Technologies we work with
Swift and SwiftUI for iOS. Kotlin and Jetpack Compose for Android. React Native and Flutter for cross-platform. Firebase and custom backends in Python, PHP, Java or .NET. REST and GraphQL APIs. Push notifications, payments, maps, analytics and the store toolchains on both sides: App Store Connect and Google Play Console. We pick the stack for the product, and we explain every choice in plain language.
Why Raydiant Webs for mobile
We are engineers first, so the invisible parts of your app, the backend, the sync, the performance under bad networks, get the same care as the screens. We build both native and cross-platform, which means our recommendation is based on your project, not on the only thing we know how to sell. We handle the store process end to end, and we say honest things early: about scope, about cost, and occasionally about whether you need an app at all. Clients keep full ownership of code and documentation, always.
Mobile App FAQ
A focused first version typically takes a small number of months from kickoff to store submission, depending on scope. Larger apps take longer. You get a clear timeline during scoping, before any commitment.
It depends where your users are. In most markets you eventually want both, and cross-platform development lets you launch on both stores from one codebase. If your audience is heavily concentrated on one platform, starting there can make sense. We advise based on your actual audience.
Focused business apps typically start in the low tens of thousands and rise with complexity, integrations and custom backends. We give you a fixed price for a defined scope after discovery, and honest industry ranges before it.
Yes, end to end: accounts, listings, screenshots, compliance and the review back-and-forth with Apple and Google, including resubmissions when the reviewers push back.
Yes. Most apps we build connect to something that already exists: a website, a database, a CRM or a payment system. We design the app and its integrations as one piece.
Operating systems and devices change every year, so apps need maintenance to stay healthy. We offer ongoing support covering updates, fixes, performance and new features, and you own the code either way.
Often, yes. We review the existing codebase first and tell you honestly what state it is in and what taking it forward would involve.
Start your app project
Tell us what the app needs to do and who it is for. We will map the fastest sensible path and give you an honest picture of cost and timeline.
- Native and cross-platform, advised honestly
- Store submission handled end to end
- You own the code and documentation
Got an app idea, or an app that needs rescuing?
Tell us what it needs to do and who it is for. We will map the fastest sensible path and give you an honest picture of cost and timeline.