App Development

App Development Services: Android, iOS, Web Apps & Custom Software

From a simple booking app to a full SaaS product, I design and build apps that solve one business problem well: Android and iOS apps with Flutter or React Native, web applications, installable PWAs, custom CRMs, portals and admin dashboards. Scoped as a small MVP first, so you are not paying for features nobody uses.

App development services: Android, iOS, web app and SaaS development by Raju Ram Prajapat
What I Build

Any type of app your business actually needs

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Android & iOS Apps

Cross-platform mobile apps with Flutter or React Native: one codebase, both app stores, native-feeling performance. Store listing and submission included.

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Web Applications

Browser-based apps and admin dashboards (React / Next.js, Node.js, PHP / Laravel) for bookings, orders, inventory, reports and internal workflows.

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Progressive Web Apps (PWA)

Installable web apps that work on any phone without the app store. Often the fastest and cheapest way to launch an MVP.

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Custom CRM & Business Software

Lead, customer and sales tracking built around how your team really works, instead of bending to a generic tool.

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SaaS MVPs

Multi-user products with sign-up, roles, subscriptions and billing (Stripe / Razorpay), built lean so you can validate with real users.

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Portals

Student, patient, member and customer portals with logins, records, uploads, attendance, results and notifications.

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Integrations & APIs

Payments, WhatsApp, SMS, email, Google Sheets, maps and third-party APIs connected so data flows without copy-paste.

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eCommerce Apps

Shopping apps and custom storefronts connected to Shopify or WooCommerce, with push notifications and order tracking.

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Maintenance & Upgrades

Bug fixes, OS-version updates, new features and performance work for apps that already exist, including apps another developer built.

Real Builds

Apps and software I have already built

These are working systems in daily use, not mock-ups:

  • Online exam portal for an international abacus olympiad (internationalabacusolympiad.com): student registration, levels, timed practice and main exams, automatic results, per-level video and audio lessons, and an admin panel with student search. Custom PHP + MySQL.
  • Student portal for a skill-development institute: school, centre and class structure, self-registration, bulk daily updates and attendance.
  • Patient management web app for dental clinics: appointments, patient records and an installable PWA for front-desk tablets and phones.
  • Lead analytics dashboard that pulls enquiries from eight client websites into one live view, with parallel API fetching and timezone-correct reporting.
  • Custom CRMs and lead pipelines that store every website enquiry, email the team instantly and sync to Google Sheets, with bot submissions filtered out.

Want to see one working? Ask on the scoping call and I will walk you through the parts that are not behind a client login.

Choosing the Right Type

Native, cross-platform or PWA?

The honest answer depends on who uses the app and how often. Most small and mid-size businesses get the best value from a cross-platform app or a PWA.

OptionBest forTrade-off
Flutter / React NativeMost business apps that need both Android and iOSOne codebase, lower cost; very heavy 3D or device-specific features may need native code
Native (Kotlin / Swift)Apps that depend on advanced camera, AR, Bluetooth or top-end performanceTwo codebases, roughly double the build and maintenance cost
PWA (web app)MVPs, internal tools, portals, booking and ordering appsNo app-store listing and some iOS limits on notifications and background tasks
Web applicationDashboards, CRMs, SaaS and admin panels used on desktopNeeds a separate mobile app only if users want offline or store presence
Tech Stack

Proven tools, chosen for your project

Mobile: Flutter, React Native. Web: React, Next.js, plain PHP or Laravel, Node.js. Data: MySQL, PostgreSQL, Firebase / Firestore. Payments: Razorpay, Stripe, PayPal. Messaging: WhatsApp Business API, SMS, transactional email (SMTP). Hosting: Vercel, Hostinger cloud and VPS, Firebase. AI features: chat assistants, document summarising and data extraction using the OpenAI and Claude APIs where they genuinely save time.

I pick boring, well-supported technology on purpose: your app should still be easy for another developer to maintain in three years.

Process

How an app project runs

1

Scoping call & written spec

We agree on users, the one core problem, the must-have screens and what waits for version two. You get a written scope and a fixed quote.

2

Clickable prototype

Screen-by-screen design you can tap through on your phone before any code is written, so changes are cheap.

3

Build in weekly sprints

A working build to test every week, not a big reveal at the end. You see progress on a staging link.

4

Testing & launch

Device testing, bug fixing, Play Store and App Store submission, analytics and crash reporting set up.

5

Support & next version

Post-launch fixes included, then optional monthly maintenance and new features based on real usage.

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You own everything

Source code, accounts, domains and store listings are in your name. No lock-in.

Cost

How much does app development cost?

Cost depends on the number of screens, user roles, integrations and platforms. As a rough market guide, a simple MVP or PWA is the lowest tier, a typical business app with logins, payments and an admin panel is mid-range, and marketplace or on-demand apps (Uber or Zomato style) cost several times more. I quote a fixed price after the scoping call rather than charging open-ended hourly fees.

For detailed India, USA and UK price ranges, read the 2026 app development cost guide.

Who It's For

Businesses, founders and agencies

Clinics that want patient or booking apps, schools and coaching institutes that need student portals and exam systems, eCommerce brands that want a shopping app, startups validating a SaaS idea, and agencies that need a reliable white-label development partner. Clients work with me remotely from India, the USA, Canada, the UK, Australia, the UAE and Europe.

FAQ

Frequently asked questions

What app development services do you offer?

Android and iOS apps with Flutter or React Native, web applications and dashboards, progressive web apps (PWAs), custom CRMs, student, patient and customer portals, SaaS MVPs, and integrations with payments, WhatsApp, email and Google Sheets. I also maintain and upgrade existing apps.

How much does it cost to build an app?

It depends on screens, user roles, integrations and platforms. A simple MVP or PWA sits at the lowest tier, a typical business app with logins, payments and an admin panel is mid-range, and marketplace or on-demand apps cost several times more. I give a fixed quote after a free scoping call; the app development cost guide on this site lists 2026 market ranges for India, the USA and the UK.

How long does it take to develop an app?

A focused MVP or PWA usually takes 4 to 8 weeks. A business app with an admin panel and payments typically takes 8 to 14 weeks. Larger marketplace or SaaS products take longer and are best delivered in phases.

Should I build a native app, a Flutter app or a PWA?

Most business apps are best built cross-platform with Flutter or React Native, which covers Android and iOS from one codebase. Choose native only for heavy camera, AR, Bluetooth or performance needs. A PWA is the cheapest way to launch an MVP, internal tool or portal without the app stores.

Will I own the source code?

Yes. The source code, app store listings, domains and hosting accounts are in your name. There is no lock-in, and the code is documented so another developer can continue the work.

Can you publish the app on Google Play and the Apple App Store?

Yes. I prepare the store listing, screenshots, privacy details and builds, and handle submission and review responses. The store accounts are opened in your business name: Google Play has a one-time registration fee and the Apple Developer Program has an annual fee.

Do you work with clients outside India?

Yes. I work remotely with clients in the USA, Canada, the UK, Australia, the UAE and Europe, with calls scheduled in your time zone and progress shared on a staging link every week.

Can you take over an app another developer built?

Yes. I start with a code and infrastructure review, list what is risky or outdated, fix the urgent issues first and then continue with new features. Access to the repository and hosting is needed.

Do you build AI features into apps?

Yes, where they save real time: chat assistants trained on your own content, document and invoice data extraction, summaries and smart search, using the OpenAI or Claude APIs. I avoid adding AI just for marketing value.

What do you need from me to get started?

A short description of the problem the app solves, who will use it, any apps you like as references, and your target launch date. From the scoping call I prepare a written spec, a prototype plan and a fixed quote.

Have an app idea or a manual process to replace?

Send a short description and I will reply within 24 hours with the right type of app, a realistic timeline and next steps.

Get a Free App Scoping Call
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