Website Design, Development & SEO Company in Navi Mumbai

Sonic Infosystem
Design & Development

App Development

Android and iOS apps engineered with cross-platform technology and connected to your website and business systems.

What’s included

  • 01Product discovery & app planning
  • 02UI/UX design for Android & iOS
  • 03Cross-platform development (Flutter)
  • 04APIs & backend development
  • 05Testing, Play Store & App Store launch
  • 06Maintenance & feature updates
App Development by Sonic Infosystem

Apps that serve a clear business purpose

A successful app starts with a defined purpose: helping customers reorder, enabling field teams to log visits, giving distributors access to stock and pricing, or letting patients book and manage appointments. We begin every app project by defining that purpose, the users and the data the app must work with, then engineer a product that is simple to use and reliable in daily operation.

How we build

  1. Discovery and scoping: user roles, core journeys, integrations and a phased feature plan that controls cost and time to launch.
  2. UX and interface design: clickable prototypes for Android and iOS, reviewed with your team before development.
  3. Cross-platform development: we use Flutter to deliver native-quality Android and iOS apps from a single codebase, reducing development and maintenance cost.
  4. Backend and APIs: secure APIs connecting the app to your website, CRM, ERP or databases, typically built in Laravel.
  5. Testing and release: device testing, performance checks, and submission to the Google Play Store and Apple App Store.

Typical apps we deliver

  • Customer apps: catalogues, ordering and reordering, order tracking and loyalty.
  • Sales and field apps: visit logging, lead capture, quotations and offline data sync.
  • Dealer and distributor apps: stock availability, pricing, scheme information and order placement.
  • Service and booking apps: appointments, reminders, payments and customer communication.

After launch

Operating system updates, new devices and changing business needs mean apps require ongoing care. We provide maintenance plans covering compatibility updates, monitoring, bug fixes and planned feature releases.

FAQs

App Development: common questions

Do you build native or cross-platform apps?

We primarily use Flutter, which produces high-performance Android and iOS apps from one codebase. This reduces cost and keeps both platforms in sync.

Can the app connect to our website and existing software?

Yes. We build secure APIs that connect the app to your website, CRM, ERP or other systems so data stays consistent.

Do you publish the app on the Play Store and App Store?

Yes. We prepare store listings and handle submission and review for both stores under your company accounts.

How long does an app take to build?

A focused first version typically takes eight to fourteen weeks, depending on features and integrations. We recommend launching a core version first and expanding in phases.

Why Sonic Infosystem

Why businesses trust an agency with 20+ years.

Trends change every year. What we bring is judgement: knowing what works on the web because we have built it, maintained it and ranked it for twenty years.

Start your project
  1. 01

    Strategy before design

    Every project starts with your business, your customers and your competitors, not a template.

  2. 02

    Design that builds trust

    Custom, premium designs that make a growing company look established, and an established one look like the leader.

  3. 03

    Built for speed and Google

    Clean code, fast loading and search-ready structure on every page we ship. SEO is built in, not bolted on.

  4. 04

    One accountable team

    Design, development, content and marketing in one place. No hand-offs, no finger-pointing.

  5. 05

    Partners after launch

    Hosting, updates and monthly SEO reporting. Many of our clients have been with us for years.

Let's work together

Ready for a website that makes you look like the leader?

Get a free website & SEO audit from a team with 20+ years of experience. We reply within one working day.

  • 20+years of web & SEO
  • 500+websites & apps delivered
  • 1 dayreply time on enquiries

Free audit · no obligation

What you get in your audit

  • Page speed & mobile check
  • On-page SEO & keyword gaps
  • Comparison with your top competitors
  • A clear, prioritised action plan