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App Development · Singapore

Web & Mobile App Development in Singapore

Custom web apps, mobile apps, portals, and internal tools for Singapore businesses — scoped as an MVP first, quoted in fixed phases, and built on modern, secure technology.

Launch a working version early
MVP-firstLaunch a working version early
For every phase of the build
Fixed quotesFor every phase of the build
Code and data, no lock-in
You own itCode and data, no lock-in

In short

ILIA is an app development agency in Singapore that designs and builds custom web apps, progressive web apps, and iOS and Android apps — such as customer portals, booking systems, internal tools, and SaaS products. We start with a focused MVP, quote each phase on a fixed scope, and integrate with tools like Stripe, CRMs, and WhatsApp so the app fits how your business already works.

Why choose ILIA

Scoped to avoid waste

We build the smallest version that delivers real value, then expand based on how people actually use it — not on guesswork.

Fixed, transparent pricing

Each phase is quoted on an agreed scope before work starts, so budget and deliverables are clear from day one.

Modern, maintainable stack

We use widely supported technology like React and Next.js, so your app is fast, secure, and easy for any capable team to maintain.

Built to connect

Payments, CRMs, accounting, calendars, WhatsApp, and AI features — integrated so data flows without double entry.

Apps built for how Singapore businesses and customers operate

Singapore customers expect fast, mobile-friendly self-service, and many businesses still run key workflows on spreadsheets and WhatsApp. We build apps around that reality — mobile-first interfaces, WhatsApp and email notifications, local payment options through Stripe such as PayNow and cards, and data handling designed with PDPA obligations in mind. If your project is eligible for government digitalisation support, we can help you prepare the scope and documentation you need.

What's included

  • Discovery workshop and MVP scope
  • User flows, wireframes, and UI design
  • Clickable prototype before build
  • Web app, PWA, or iOS and Android build
  • User accounts, roles, and permissions
  • Stripe payments and tool integrations
  • Admin dashboard and reporting
  • Launch, hosting, and ongoing support

How we work

  1. 1

    Scope the MVP

    We map your users and workflows, agree the must-have features for version one, and give you a fixed quote and timeline.

  2. 2

    Design and prototype

    We design the key screens and share a clickable prototype so you can test the flow before any code is written.

  3. 3

    Build in short cycles

    We develop with regular demos, connecting payments and your existing tools along the way.

  4. 4

    Launch and grow

    We launch, monitor, and plan the next phase around real usage and feedback from your users.

Frequently asked questions

What kinds of apps do you build?

Customer and member portals, booking, quoting, and ordering systems, internal dashboards and admin tools, and SaaS products with accounts, subscriptions, and payments. We build web apps, progressive web apps, and native iOS and Android apps.

Should I start with a web app or a mobile app?

Most businesses are best served by starting with a web app or progressive web app: one codebase, every device, no app store approval, and a faster, more affordable launch. We recommend native mobile apps when you need device features or a strong app store presence.

How much does app development cost in Singapore?

Cost depends on user types, features, and integrations. A focused MVP or internal tool costs far less than a full platform or native app. We quote each phase on a fixed scope before work begins, so there are no hidden fees.

How long does it take to build an MVP?

A focused MVP or internal tool can often launch within weeks. Larger platforms are delivered in phases over several months, with timelines agreed for each phase up front.

Will I own the app and its code?

Yes. On full payment you own the code and your data. We document the project and use widely supported technology, so you are never locked in.

Ready to grow?

Book a free, no-obligation review and we'll show you exactly where you stand and what we'd do first.

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