🌐 Web Applications & Portals

Mobile apps your users open every single day

A poorly designed app gets deleted in 72 hours. We build mobile applications with the UX depth and technical reliability that keeps users coming back β€” and your business growing.
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Android &
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What you'll get

Native & cross-platform builds

iOS, Android, or Flutter/React Native β€” we recommend what fits

UX tailored to your users

Designed around how real people use mobile apps, not templates

Offline mode & push notifications

Core mobile capabilities built in, not bolted on

App store submission & updates

We handle the end-to-end release process for both stores

Sound Familiar?

Your current app is bleeding users

Most apps fail because of poor UX β€” not technology. If users aren’t engaging, it’s usually the experience, not the server.

Your app crashes or lags under load

Performance issues are brand killers on mobile. One bad review about crashes and your ratings take months to recover.

Your app was built for launch, not growth

Features that seemed complete at v1 are now blocking growth. Scaling a poorly-architected mobile app is expensive and slow.

You're maintaining two separate codebases

Native iOS and Android built separately means double the cost, double the bugs, and twice the time to ship new features.

Service Overview

Mobile apps built around your users, not your assumptions

We design and develop mobile applications for iOS, Android, and cross-platform β€” built around real user behaviour, real device constraints, and your actual business model. Not assumptions made in a meeting room.

Every app we build starts with user journey mapping and UX design before a line of code is written. We test on real devices throughout development β€” not just at the end β€” so what ships actually works.

Who this is for

Startups building their first mobile product

Enterprises adding mobile to existing platforms

Retail & e-commerce brands needing mobile commerce

Healthcare providers launching patient-facing apps

EdTech companies building learning mobile experiences

Businesses replacing outdated native apps

Not sure if this is the right service?

Book a free call β€” we’ll give you an honest recommendation.
What You Get

Everything included, end to end

No cut corners, no missing pieces.

UX Research & Journey Mapping

We map real user flows before design begins β€” so every screen solves an actual problem.

High-Fidelity UI Design

Beautiful, branded interfaces with interactive prototypes reviewed before development starts.

iOS & Android Native Builds

Purpose-built for each platform when performance and platform-specific features matter most.

Cross-Platform Development

React Native or Flutter for faster delivery and a single codebase without sacrificing quality.

Push Notifications & Offline Mode

Engagement features and offline data sync β€” built into the architecture from the start.

API & Backend Integration

Deep integration with your existing systems, third-party APIs, and data sources.

Real Device Testing

Testing across 20+ real device/OS combinations before every release β€” not just simulators.

App Store Submission & Lifecycle

We handle Apple App Store and Google Play submission, release management, and version updates.

Our Process

How we deliver your project

A clear, structured process β€” from first call to final handover.

01

Discovery & User Research

We map your target users, their journeys, and the core jobs your app needs to do β€” before anything is designed or scoped.

⏱ 1–2 days
02

Scope & Technical Planning

Feature prioritisation, platform selection, API architecture, and a detailed project timeline with realistic cost.

⏱ 1 weeks
03

UX Wireframes & Prototype

Screen-by-screen wireframes followed by high-fidelity UI mockups. Clickable prototype signed off before development.

⏱ 2–3 weeks
04

Agile Development

Sprint-based development with working builds every 2 weeks. You test on real devices and give feedback throughout.

⏱ 6–16 weeks
05

QA & Device Testing

Functional testing, performance testing, and real device compatibility testing across iOS and Android before submission.

⏱1–2 weeks
06

App Store Launch & Support

Full submission management, release notes, and post-launch monitoring. Ongoing support available under SLA.

⏱ 1 week + ongoing

Why Srabu

Experts you can trust to get it right.

UX Before Code

We design and validate before building β€” because changing UX after development is 5Γ— more expensive than getting it right upfront.

Real Device Testing

We test on physical devices β€” not just simulators. Your users don't use simulators, so neither do we.

Performance by Design

Smooth 60fps animations, fast load times, and minimal battery drain β€” engineered, not hoped for.

Security Built In

Encrypted data storage, secure API communication, and biometric auth support β€” standard, not extra.

Full App Store Management

We handle the submission process β€” Apple guidelines, Play Store policies, and release management β€” so you don't have to.

Long-Term Partnership

Most of our mobile app clients stay for multiple version releases. We build for the long haul, not just the launch.

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Use Cases & Industries

Built for businesses like yours

Retail

Mobile loyalty & rewards app

A retail chain launched a mobile loyalty app with personalised offers and in-app purchases β€” achieving a 38% increase in repeat purchases in the first quarter after launch.

Healthcare

Patient appointment & telemedicine app

A healthcare provider launched a patient app for bookings, teleconsults, and prescription tracking β€” reducing no-shows by 42% and cutting front desk workload significantly.

EdTech

Interactive learning platform on mobile

An EdTech company rebuilt their mobile experience with offline lesson access and progress tracking β€” increasing daily active users by 60% within two months of relaunch.

Industries we serve

πŸ₯ Healthcare
πŸ›’ Retail & E-commerce
πŸš› Logistics
🏦 Fintech
πŸŽ“ EdTech
πŸ—οΈ Real Estate
🏭 Manufacturing
🌐 SaaS
🀝 Professional Services
Client Testimonials

What our clients say

Srabu's team understood our constraints quickly and delivered a reliable solution with clear documentation and strong communication throughout.
PS

Priya Sen

Website Development

The engineering quality was enterprise-grade β€” clean architecture, disciplined releases, and proactive risk management throughout.
JT

James Thornton

Software Development

From discovery to deployment, the team took full ownership and helped us ship faster without compromising on stability.
AR

Aman Roy

All-in-One Tech Partner

FAQ

Questions we get asked most

Should we build native or cross-platform?
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It depends on your requirements, budget, and timeline. Native (Swift/Kotlin) gives the best performance and platform-specific capabilities but costs more. Cross-platform (React Native/Flutter) delivers 80–90% of native performance at significantly lower cost and faster timelines. We'll recommend the right approach after understanding your use case.
Can you build on top of our existing systems?
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Yes β€” and we do this regularly. We assess your existing infrastructure during discovery, identify integration points, and build the new web application to connect cleanly with what you already have. We won't recommend a full replacement unless it's genuinely necessary.
How do you handle security for portals with sensitive data?
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Security is designed in, not added later. We follow OWASP guidelines, implement encrypted data storage and transmission, set up role-based access controls, and conduct a dedicated security review before every deployment. For regulated industries, we align with relevant compliance frameworks.
Will the portal work on mobile and tablets?
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Always. Every web application we build is fully responsive β€” tested on a range of real devices and browsers before delivery. We don't build "desktop-first" and patch it for mobile β€” mobile responsiveness is part of the core design process.
How long does it take to build a web portal?
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Simple portals with standard features can be delivered in 6–10 weeks. Complex, multi-role platforms with deep integrations typically take 14–20 weeks. We provide a detailed timeline after scoping β€” not before, because timeline estimates before scoping are guesswork.
What happens after the portal goes live?
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We offer SLA-based post-launch support covering bug fixes, performance monitoring, feature updates, and maintenance. We also provide full documentation so your internal team can manage day-to-day operations. Ongoing support is your choice β€” never a condition of working with us.