Mobile Application Solutions for customers, field teams and operations
We design, build and publish Android and iOS apps in Kotlin, Swift, Flutter and React Native, together with the backend, admin panel and integrations each app needs. Apps are built to run well on budget Android phones and patchy networks, and connect to your ERP, CRM, payment gateway and WhatsApp.
- Source code and Play Store / App Store accounts in your name
- Clickable prototype approved before development starts
Mobile apps
Android, iOS or Flutter, customer and staff versions · Front end
Backend & APIs
Login, business logic, payments and notifications · Server
Admin panel
Orders, users, content and reports for your team · Operations
Integrations
Tally, ERP, CRM, maps, UPI and WhatsApp · Connected
- Monitored for crash-free sessions, load time and retention
Android and iOS apps, the backend behind them and everything needed to launch
Start with a single app or a complete platform with customer, staff and admin apps. Each service lists what we deliver and the technology we use.
Native Android App Development
Kotlin apps built for the wide range of Android phones used in India, from budget models to flagships.
- Jetpack Compose UI with Material 3
- Optimised for low RAM and small storage
- Current Play Store target API level
Native iOS App Development
Swift apps for iPhone and iPad users, following Apple’s Human Interface Guidelines.
- SwiftUI screens and widgets
- Apple Pay, Sign in with Apple and Face ID
- App Tracking Transparency and privacy labels
Cross-platform Apps: Flutter & React Native
One codebase that ships to both the Play Store and the App Store, with lower build and maintenance cost.
- Shared business logic across Android and iOS
- Native modules where hardware access is needed
- Consistent design on both platforms
Progressive Web Apps (PWA)
Installable web apps that open from a link, work offline and need no store approval.
- Home-screen install and offline caching
- Push notifications on Android browsers
- Shared code with your website
App UI/UX Design
User research, wireframes and a clickable prototype, tested with real users before development begins.
- User journeys for each type of user
- Figma design system and clickable prototype
- Accessibility and Hindi-language layouts
App Modernisation & Takeover
Fixes, upgrades or rebuilds apps made by other vendors that crash, fail store reviews or can no longer be updated.
- Code and security audit
- SDK and target API level upgrades
- Crash fixes or phased rewrite
On-demand & Booking Apps
Customer, service-provider and admin apps for bookings, home services and appointments.
- Slot management and live availability
- Provider app with job acceptance and tracking
- Ratings, payouts and commission settings
E-commerce & Shopping Apps
Shopping apps connected to your online store, with the same catalogue, cart and customer accounts.
- UPI, card, wallet and COD checkout
- Order tracking and returns in the app
- Wishlist, offers and back-in-stock alerts
Healthcare & Telemedicine Apps
Patient and doctor apps for appointments, video consultations, prescriptions and reports.
- Built to the Telemedicine Practice Guidelines, 2020
- Lab reports, bills and prescriptions in one place
- Integration with our Hospital Management Suite
Field Force & Sales Team Apps
Apps for sales reps, technicians and field staff that record visits, orders and attendance, even without signal.
- Geo-fenced attendance with selfie check-in
- Beat plans, order booking and collections
- Sync with the Attendance & Payroll Suite
Delivery & Logistics Apps
Rider, dispatcher and customer apps for last-mile delivery and fleet operations.
- Route sequencing and live tracking
- Proof of delivery with photo, signature or OTP
- COD collection and daily reconciliation
Fintech & Payment Apps
Apps for collections, lending, wallets and loyalty, built with the security and compliance these products require.
- UPI intent and payment gateway SDKs
- KYC through licensed partners
- Device binding, SSL pinning and root detection
Backend, APIs & Admin Panels
The server, database and admin dashboard that every production app needs to run and be managed.
- Secure REST or GraphQL APIs
- Role-based admin panel with reports
- Scalable hosting on AWS or Google Cloud
Real-time Chat, Tracking & Notifications
Live features such as in-app chat, order and rider tracking, and targeted push notifications.
- WebSocket chat and live status updates
- Push via Firebase Cloud Messaging and APNs
- Segmented notification campaigns
ERP, CRM & Payment Integration
Connects the app to the systems your business already uses, so orders and records are not entered twice.
- Tally, Zoho and EPA ERP suites
- Razorpay, PayU and Cashfree SDKs
- WhatsApp and SMS notifications
Offline-first & Low-connectivity Apps
Apps that keep working in rural areas, warehouses and basements, then sync when a connection returns.
- Local database with background sync
- Conflict handling when records change offline
- Small app size and data-saver modes
Play Store & App Store Publishing
Store submission and approval handled end to end, with accounts registered to your business.
- Developer accounts, listings and screenshots
- Data safety forms and privacy nutrition labels
- Review rejection handling and resubmission
App Maintenance, Analytics & Security
Keeps the app stable, secure and compatible with each new Android and iOS release.
- Crash monitoring and monthly updates
- OWASP MASVS security checks
- Usage analytics and retention reports
From idea to published app in five stages
You approve a clickable prototype before development starts, and receive a test build on your phone every two weeks.
Discovery & scoping
User types, features ranked by priority, platform choice and a list of the systems the app must connect to.
UX & prototype
Wireframes and UI design in Figma, then a clickable prototype tested with a few real users.
Development
App, backend and admin panel built in two-week sprints, with test builds through TestFlight and Play internal testing.
QA & device testing
Testing on budget, mid-range and flagship devices across OS versions, plus performance and security checks.
Store launch & support
Store submissions and approvals, crash monitoring and updates for new OS releases.
Native, cross-platform or progressive web app
The right approach depends on the features you need, your budget and who will use the app. We recommend one after scoping.
Native Android
Kotlin apps with full hardware access and the best performance across the Android phones most Indian users carry.
Native iOS
Swift apps for premium and international audiences, with Apple Pay, widgets and deep iOS features.
Flutter
A single codebase for Android and iOS with near-native speed and the same design on both.
React Native
Uses JavaScript and React skills, and can share some logic with a React website.
PWA
Opens from a link and installs without a store. Suited to catalogues and repeat-use tools.
Low-code apps
FlutterFlow or AppSheet for straightforward internal apps where speed matters more than custom features.
Mobile apps by industry
Each sector has its own users, workflows and regulations. These are the ones we build for most often.
Hospitals, clinics & diagnostics
Patient apps for booking, reports and bills, and doctor apps for schedules and prescriptions, connected to our Hospital Management Suite.
Salons, spas & wellness
Booking, memberships, packages and loyalty points in a branded app, linked to the Salon & SPA Suite.
Sarees & apparel
Catalogue apps with WhatsApp sharing, wholesale ordering for retailers and new-collection notifications.
FMCG & distribution
Retailer ordering apps and salesman apps with schemes, outstanding balances and beat-wise order booking.
Logistics & delivery
Rider, dispatcher and customer apps with live tracking, proof of delivery and COD reconciliation.
Enterprise HR & workforce
Attendance with selfie and geo-fence, leave requests and payslips through the Attendance & Payroll Suite.
Apps built together with the backend and systems they depend on
Most app problems come from the backend, not the screens. Because we also build ERP, billing and payroll software, we design the APIs, admin panel and integrations alongside the app so it fits how your business runs.
Accounts in your name
Play Console, App Store Connect, Firebase and cloud accounts are registered to your business from the start.
Built for Indian conditions
Tested on budget phones and slow networks, with Hindi interfaces and UPI payments where needed.
Store policy experience
Data safety forms, permission declarations, target API deadlines and review rejections handled for you.
One team end to end
The same team designs, builds, publishes and maintains the app, backend and admin panel.
Handed over on release day
- Android and iOS source code in your Git repository
- Backend API with documentation
- Admin panel for your team
- Play Store and App Store listings with screenshots
- Privacy policy and data safety declarations
- Crash reporting and analytics dashboards
- Push notification set-up
- 30 days of post-launch hypercare
Every sprint
Test build on your phone every two weeks
Monthly
Crash, rating and usage report
Yearly
Updates for new OS and store policies
Choose how you want to work with us
Projects are quoted after scoping, broken down by phase. Store fees, hosting and third-party services are shown separately.
App Discovery Sprint
Scope, user flows and a clickable prototype you can test before committing to a build.
- Feature list and platform choice
- Clickable Figma prototype
- Phase-wise estimate
App Build & Launch
Design, development, testing and store launch delivered in priced milestones.
- Apps, backend and admin panel
- Integrations and store publishing
- Launch plus 30-day hypercare
App Care Plan
Maintenance for apps we or others built, with defined response times.
- Crash fixes and OS updates
- Store policy compliance
- Monthly enhancement hours
Dedicated App Team
Mobile developers, a designer and QA working on your product roadmap.
- Sprint planning and demos
- Feature roadmap ownership
- Team size adjusted as needed
Mobile app development questions we are asked most
Something not covered here? Call +91 91150 89470 or email info@epaits.com.
Should we build with Flutter or native Android and iOS?
Flutter suits most business apps because one codebase serves both stores at lower cost. Native Kotlin and Swift are better when the app relies heavily on device hardware, complex animations or platform-specific features. We recommend an approach after scoping your features.
How much does it cost to develop a mobile app?
Cost depends on the number of user types, screens, integrations and whether you need a backend and admin panel. After a discovery sprint we provide a fixed estimate for each phase, along with ongoing hosting and store costs.
How long does it take to build an app?
A focused first version with one user type usually takes 10 to 14 weeks including design and store approval. Platforms with customer, provider and admin apps typically take 4 to 6 months, released in phases.
Who owns the app and store accounts?
You do. The source code sits in your Git repository, and the Google Play Console, App Store Connect, Firebase and hosting accounts are registered to your business.
Will the app work on low-end phones and slow internet?
Yes. We test on budget Android devices, keep app size small, cache data locally and build offline modes where users work in low-signal areas.
Can you fix or update an app built by another company?
Yes. We start with a code and security audit, fix crashes and store policy issues, upgrade outdated SDKs and then continue development or maintenance.
Do you handle Play Store and App Store approval?
Yes. We prepare listings, screenshots, privacy policies and data safety declarations, submit the builds and handle any review rejections until the app is approved.
Can the app connect to our ERP, website or payment gateway?
Yes. We integrate apps with Tally, Zoho, EPA’s Hospital, Salon, Payroll and Billing suites, Shopify and WooCommerce stores and gateways such as Razorpay, PayU and Cashfree.
Services that work alongside your app
Turn your app idea into a clear scope and estimate
Tell us who will use the app and what it must do. Within 5 working days we send a feature list, platform recommendation, screen flow and a phase-wise estimate.
- Feature list and platform recommendation
- Screen flow and integration list
- NDA available on request
Request your app consultation
We reply within one working day.