Custom Mobile App Development Company · India & USA

Build a Mobile App Your Users Love, Not Just Another Download

From consumer apps and enterprise field-force tools to AI-powered mobile products, D2i Technology designs, develops, tests and supports iOS, Android and cross-platform apps built around your business goals and your users.

  • 75+ Mobile apps delivered
  • 17+ Years of engineering experience
  • ISO 27001 Certified information security
  • ISO 9001 Certified quality management
  • India + USA Global delivery

What Are You Looking to Build?

Pick the one closest to your project and see how we would approach it.

Consumer App

Launch an iOS and Android app for customers, with onboarding, engagement and growth built in.

Enterprise / Field-Force App

Give your teams a secure mobile app to run workflows, capture data and work offline.

E-commerce or On-Demand App

Build a shopping, booking or delivery app with payments, tracking and real-time updates.

Healthcare or Fintech App

Build apps where privacy, security and accuracy matter as much as the user experience.

AI-Powered Mobile App

Add chatbots, image recognition, recommendations or intelligent automation to your app.

Existing App Needs Modernization

Upgrade performance, UX, security or the tech stack without losing your current users.

Not sure which one fits your project?

Tell us what you have in mind and our experts will suggest the right approach, platform and team.

Talk to an Expert

Types of Mobile Apps We Build

End-to-end custom mobile app development, from first prototype to store release and ongoing support

iOS App Development

Native iPhone and iPad apps built with Swift and SwiftUI, optimized for Apple's ecosystem.

  • Swift
  • SwiftUI
  • App Store ready

Android App Development

Feature-rich Android apps built with Kotlin across the full range of devices.

  • Kotlin
  • Jetpack
  • Google Play ready

Cross-Platform Apps

One codebase for iOS and Android with near-native performance and a consistent experience.

  • Flutter
  • React Native
  • Shared codebase

Enterprise Mobile Apps

Secure apps for field teams and large organizations, connected to the systems you already run.

  • Offline mode
  • ERP / CRM
  • MDM support

AI-Powered Mobile Apps

Apps with built-in chatbots, image recognition, recommendations and intelligent automation.

  • Chatbots
  • Image recognition
  • Personalization

E-commerce and On-Demand

Shopping, booking and delivery apps with payments, tracking and push notifications.

  • Payments
  • Live tracking
  • Push alerts

Healthcare and Fintech Apps

Apps for regulated industries where secure data handling and accuracy are essential.

  • Biometrics
  • Encryption
  • Audit trails

App Modernization

Upgrade legacy apps to modern frameworks without disrupting existing users or data.

  • Data migration
  • API re-design
  • Phased release

Built for Real Business Problems

Real engagements, real outcomes. Every result below comes from a documented client case study.

Website Redesign · UX/UI

Website Redesign at New Life Agency

New Life Agency needed a modern, professional website that truly reflected their reputation. D2i Technology redesigned their digital presence from the ground up — delivering a faster, more intuitive, and fully responsive experience built to support their continued growth.

Read Full Case Study of Website Redesign at New Life Agency
Marketplace Platform Scaling · DevOps & Cloud

DevOps Transformation at ZiffyCar

ZiffyCar's peer-to-peer car rental marketplace was expanding fast — 50+ cities, thousands of hosts, and booking traffic that spiked hard every weekend. D2i Technology built the DevOps foundation to match that growth, turning a fragmented, contractor-heavy delivery model into a streamlined pipeline that achieved 10× faster releases and a 40% reduction in DevOps spend.

Read Full Case Study of DevOps Transformation at ZiffyCar
Enterprise Web Application · Logistics

Custom Web Application at Okara Enterprise

Okara Enterprises, a global logistics company, was held back by outdated systems that couldn't keep pace with the complexity of modern supply chain operations. D2i Technology delivered a cloud-based solution that saved $500K annually and transformed customer satisfaction.

Read Full Case Study of Custom Web Application at Okara Enterprise

Why Businesses Choose Custom Mobile Apps

A custom mobile app is built around your workflows and your users, not generic off-the-shelf software. As a Custom Mobile App Development Company in India, we build for clients across the USA, UK, Australia and beyond.

Fit your workflow

No forcing your business into someone else's process.

Integrate your systems

APIs, CRM, ERP, payment gateways and third-party services.

Scale as you grow

Architecture designed around expected users, data and devices.

Own your product

Your app, your data, your release schedule and your roadmap.

Accessible from the start

Screen reader, text size and touch target support are part of design, development and QA.

Native or Cross-Platform?

There is no single right answer. Here is how we would think about it.

Which approach to consider for common mobile app needs
If you need... Consider...
Fast launch on iOS and Android with one team Cross-platform (Flutter or React Native)
The best performance and deepest device features Native (Swift and Kotlin)
A limited budget to validate an idea Cross-platform MVP
Heavy graphics, AR or advanced sensors Native development
Internal tools for your own staff Enterprise app with MDM distribution
An existing app on an outdated stack Modernization or migration

From Idea to App Store

A proven 6-stage process that turns your vision into a production-ready mobile application

  1. Step 01

    Discover

    Understand your users, business goals, platforms and technical constraints.

  2. Step 02

    Design

    UX, UI, mobile design system and clickable prototypes.

  3. Step 03

    Build

    Agile sprints with code reviews and continuous integration.

  4. Step 04

    Test

    Functional QA, device compatibility, performance, security and accessibility.

  5. Step 05

    Launch

    App Store and Google Play submission, release management and go-live.

  6. Step 06

    Improve

    OS updates, monitoring, maintenance and new features.

What Happens After You Contact D2i?

No big commitment up front. Here is what the first few weeks look like.

  1. Step 1: 30-minute discovery call

    We listen to what you are trying to build.

  2. Step 2: Requirements and feasibility

    We confirm scope, platforms, risks and technical fit.

  3. Step 3: Solution proposal

    Approach, team and estimate in writing.

  4. Step 4: Development plan

    Milestones, sprints and who does what.

  5. Step 5: Start building

    Your team is onboarded and sprint one begins.

We Don't Stop at Writing Code

Your app ships ready for real users, real devices and real store review.

Fast

Performance engineering keeps launch time, scrolling and network calls quick, even on mid-range devices.

Secure

Secure storage, encrypted communication and secure development practices, backed by ISO 27001 certified processes.

Accessible

VoiceOver, TalkBack and WCAG-focused design, development and testing so everyone can use your app.

Tested

Manual QA, test automation and device compatibility testing on every release.

Store-Ready

Metadata, screenshots, privacy documentation and guideline checks for the App Store and Google Play.

Maintainable

Clean architecture, documentation and ongoing support so the app keeps up with every OS update.

Accessibility by design

Accessibility Built Into Your Mobile App

Accessibility shouldn't be a remediation project six months after launch. We make it part of every stage, with certified accessibility specialists working alongside your mobile developers.

  1. Design

    Accessible patterns, color contrast, touch target size and focus order from the first wireframe.

  2. Development

    Native accessibility labels, roles and traits, dynamic text sizing and full screen reader support.

  3. Testing

    Manual and automated testing with VoiceOver and TalkBack on real devices.

  4. Remediation

    Clear, prioritized fixes for every issue found.

  5. Retesting

    Verification that fixes hold before release.

  • WCAG 2.1 / 2.2
  • ADA
  • Section 508
  • EAA (where applicable)
  • VoiceOver
  • TalkBack
  • Dynamic text sizing
  • Screen readers
  • Manual + automated
See Our Accessibility Services

Technology That Fits the Product

We choose technology based on the product, not because it's our favorite framework.

Cross-Platform

  • Flutter
  • React Native
  • Ionic
  • Xamarin

Native

  • Swift
  • SwiftUI
  • Kotlin
  • Java
  • Objective-C

Backend and APIs

  • Node.js
  • Laravel
  • Python
  • Firebase

Cloud and DevOps

  • AWS
  • Azure
  • Docker
  • CI/CD

AI and Automation

  • OpenAI API
  • LangChain
  • TensorFlow
  • Custom ML models

Not Sure Where to Start?

Tell us where you are and what you need. We will suggest a starting point.

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What do you need help with?

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How Can We Work Together?

Whether you need a full product team or dedicated mobile app developers from India to extend your own, we match the engagement to your situation.

Build My App

End-to-end discovery, design, development, QA and store launch.

Best for: Startups and businesses building a new mobile app.

Extend My Mobile Team

Dedicated mobile developers, QA, DevOps and architects who work inside your process.

Best for: Companies that already have an app or a team.

Modernize My Existing App

Improve architecture, performance, UX, accessibility or maintainability.

Best for: Businesses with an app that is hard to change or out of date.

Choose How You Pay

Dedicated Team

Monthly retainer for long-term or ongoing product development with predictable billing.

  • Full-time dedicated developers
  • Daily standups and sprint planning
  • Maximum cost efficiency

Fixed-Price Project

For well-defined projects. Agree on price, timeline and milestones up front.

  • Clear scope and milestones
  • Fixed budget, no surprises
  • Defined delivery dates

Flexible Hourly

Pay only for hours worked. Best for short sprints, feature additions or on-demand expertise.

  • No long-term commitment
  • Transparent time tracking
  • Scale up or down any time

Why Companies Work With D2i

Our teams do not just write code, they take responsibility for the outcome.

Engineering, QA and Accessibility Under One Roof

Not just development. Testing and accessibility specialists work with your engineers from the start.

One Accountable Partner

Design, development, QA, DevOps and accessibility from a single team.

Transparent Delivery

Sprint demos, Jira and Slack visibility and regular reporting. No black boxes.

Security and Quality

ISO 27001 and ISO 9001 certified processes behind every engagement.

Global Delivery

India-based engineering with experience serving clients across the USA and beyond, at up to 60% savings versus onshore teams.

Long-Term Partnership

SLA-backed support and maintenance after launch. We do not disappear after go-live.

What Clients Say

In recognition of exceptional performance, dedication, hard work, passion, and commitment to excellence — D2i Technology’s invaluable contribution continues to make a significant impact in support of our All Hazards, One Health, One Nature mission.

Verify Certificate

Allison A. Sakara

Co-Founder & Executive Director, High Alert Institute

Their DevOps Services in USA helped us significantly reduce deployment time and infrastructure costs. D2i Technology streamlined our CI/CD pipelines and improved system stability. The results were visible within weeks, and their DevOps expertise truly made a difference.

DevOps Services & Solutions (USA)

D2i Technology is a highly dependable Web Development Company in India. From requirement gathering to final delivery, their team demonstrated strong technical expertise and ownership. The final product was robust, user-friendly, and built exactly as envisioned.

Web Development Company (India)

Frequently Asked Questions

The questions we hear most before a project starts.

Have a Mobile App in Mind?

Tell us what you're trying to build, improve or scale. We'll help you understand the right technical approach, team and next steps.

No obligation. Start with a 30-minute discovery conversation.