App Development Services β Custom Mobile & Web Apps That Put Your Business in Every Customer’s Pocket
With 6.3 billion smartphone users worldwide and people spending 90% of their mobile time inside apps β not browsers β a professionally built mobile app is no longer a luxury for growing businesses. It is a direct, always-on channel to your customers. Arb Digital Marketing Agency builds custom iOS, Android, and cross-platform apps from concept to App Store launch, for businesses worldwide.
90% of Mobile Time Is Spent in Apps β Not in Browsers. Is Your Business There?
Your website is essential β but it requires your customers to actively seek you out, remember your URL, and navigate a browser experience on a small screen. A mobile app changes this dynamic entirely. Your icon sits on their home screen. Push notifications bring them back without any effort on their part. Their preferences, history, and account details are always there. The barrier between your customer and your product drops to a single tap.
Businesses with dedicated mobile apps consistently outperform their website-only competitors on customer engagement, repeat purchase rates, and lifetime customer value β because the app creates a persistent relationship that a website simply cannot replicate.
π
Direct Push Notification Channel
Send offers, updates, and reminders directly to your customers’ lock screens β with no email open rate uncertainty, no social algorithm, and no cost per message. Push notifications boost app engagement by 88% (Localytics).
π
Higher Customer Retention
Businesses with mobile apps report 20β30% higher customer retention than those without β because the app lowers the friction of repeat engagement to a single tap. Loyalty programs and in-app rewards compound this advantage over time.
π
Hardware Access β GPS, Camera, Biometrics
Native apps access device hardware that browsers cannot β GPS for location-based features, camera for scanning and image uploads, Face ID and Touch ID for secure authentication, and offline functionality for low-connectivity environments.
β‘
Superior Speed & Performance
Native and cross-platform apps run locally on the device β rendering instantly without network latency, maintaining smooth 60fps animations, and functioning offline. Speed improvements directly translate to higher conversion rates and lower drop-off.
π
Brand Presence on the Home Screen
Your app icon on a customer’s home screen is daily brand exposure with zero cost per impression. Every time they unlock their phone, they see your brand β a permanent digital billboard in the most personal space in their life.
π± Mobile App
π Mobile Web
Push notifications
β Full β
Limited (PWA)
Offline access
β Full β
β No
Device hardware
β Full β
Partial
Performance
β Native β
Browser-limited
Home screen icon
β Always β
Optional (PWA)
App Store discovery
β Yes β
β No
Engagement rate
β 3β5x higher β
Standard
Development cost
Higher
β Lower β
π― Which Businesses Benefit Most from a Mobile App?
π
E-commerce Businesses
Higher conversion rates, repeat purchase push notifications, loyalty rewards, and personalized product recommendations outperform mobile web for returning shoppers.
π
On-Demand Service Businesses
Food delivery, ride-hailing, home services, and booking-based businesses where real-time booking, tracking, and payment are core to the service experience.
πΌ
SaaS & Subscription Products
Extending your SaaS platform to mobile increases daily active usage, improves retention, and opens a new acquisition channel through App Store discovery.
π₯
Healthcare, Fitness & Wellness
Health tracking, appointment booking, telemedicine, workout logging, and nutrition tracking apps where daily engagement and device sensor access are essential.
π
Education & Training
E-learning platforms, digital marketing academies, and skill-building apps where push notifications for lessons, offline content, and progress tracking drive learner completion rates.
App Types We Build
Every Type of Mobile & Web App β Matched to Your Business Model and Audience
App development is not one-size-fits-all. The right app type depends on your features, your audience, your budget, and your timeline. We recommend the optimal approach based on your specific requirements β not what is easiest to build.
π¦Cross-Platform β Recommended
Flutter Apps β iOS & Android from One Codebase
Flutter (by Google) is our primary recommendation for most clients β a single codebase that produces genuinely native-performance apps for both iOS and Android simultaneously. Reduces development time by 40β60% vs building two separate native apps, with near-identical visual quality. Used by Google, BMW, Alibaba, and eBay.
Single codebase for iOS + AndroidNative performance β 60fps rendering40β60% cost saving vs dual nativeHot reload for fast iteration
βοΈCross-Platform
React Native Apps β JavaScript Cross-Platform
React Native (by Meta) allows teams with JavaScript/React experience to build cross-platform mobile apps β sharing code between iOS, Android, and web. Excellent for startups and teams wanting to leverage existing web development skills. Powers Facebook, Instagram, Shopify, and Airbnb’s mobile apps.
JavaScript β wide developer availabilityiOS + Android + Web code sharingLarge ecosystem and communitySuitable for content-heavy apps
πNative iOS
Native iOS Apps β Swift
Built in Swift β Apple’s purpose-built programming language β native iOS apps deliver the absolute best performance, deepest hardware integration, and most polished user experience on iPhone and iPad. Recommended when your app requires advanced hardware features, heavy graphics (games, AR), or the premium iOS experience is central to your brand positioning.
Maximum iOS performance & fidelityFull Apple framework access (ARKit, CoreML)Face ID, Apple Pay, Siri integrationBest for complex, high-performance apps
π€Native Android
Native Android Apps β Kotlin
Built in Kotlin β Google’s modern Android language β native Android apps provide the fullest access to Android’s hardware, customisation capabilities, and the broadest device compatibility. Essential for apps targeting Android-dominant markets (South Asia, Southeast Asia, Africa, Latin America) or requiring deep Android system integration.
Maximum Android performanceFull Android framework & hardware accessGoogle Pay, NFC, widget supportOptimal for Android-dominant markets
πProgressive Web App
Progressive Web Apps (PWA)
PWAs are websites that behave like native apps β installable on home screens, capable of push notifications, functional offline, and loading instantly. The cost-effective middle ground for businesses that want app-like experiences without App Store submission, dual-platform development, or OS update management complexity.
No App Store submission neededWorks on any device with a browserPush notifications & offline modeLower development cost vs native
βοΈSaaS / Web App
SaaS & Web Applications
Browser-based web applications β from internal business tools and dashboards to customer-facing SaaS platforms β built with modern frameworks (React, Next.js, Laravel). Accessible on any device without App Store dependency, ideal for B2B tools and admin platforms where desktop usage is primary and complex data workflows are central.
Browser-based β no installationComplex dashboards & data workflowsMulti-role user managementAPI-first, integration-ready
π¦ Why We Recommend Flutter for Most Clients
Flutter is currently the world’s most popular cross-platform framework β used by Google, BMW, Alibaba, eBay, and over 500,000 published apps. A single Flutter codebase produces genuinely high-performance apps for iOS, Android, web, and desktop from the same code β dramatically reducing cost and development time without compromising on quality. For most business apps, the performance difference from native is imperceptible to end users, making Flutter the rational choice for the vast majority of app development projects.
500K+
Published Flutter apps on App Stores
40β60%
Cost saving vs building two native apps
Our Development Process & Tech Stack
From Your Idea to App Store β A Structured, Transparent 6-Phase Process
Every app we build follows a structured development methodology β clear milestones, regular demos, and full transparency at every stage. You see progress throughout, not just at the end.
1
Discovery & Requirements
Deep-dive into your business goals, target users, core features, competitor apps, and technical requirements. We produce a detailed scope document β every feature, screen, and user flow defined before development begins.
β± Week 1β2
2
UI/UX Design & Prototyping
Wireframes establish information architecture and user flows. High-fidelity mockups apply your brand identity. An interactive prototype lets you experience the app before a single line of code is written β catching design issues early when changes are cheapest.
β± Weeks 2β4
3
Backend & API Development
Server-side infrastructure β database design, authentication, API endpoints, business logic, third-party integrations (payment gateways, maps, SMS, social auth) β built for security, scalability, and performance from day one.
β± Weeks 3β10 (parallel)
4
Frontend App Development
Approved designs are built into a fully functional app β feature by feature β with bi-weekly demo builds shared for your feedback. You test on real devices throughout development, not just at the end.
β± Weeks 5β14 (parallel)
5
Testing β QA, Performance & Security
Comprehensive testing across real iOS and Android devices covering functionality, edge cases, performance under load, security vulnerabilities, network failure handling, and App Store submission requirements compliance.
β± Weeks 12β16
6
App Store Launch & Post-Launch Support
App Store and Google Play submission with ASO-optimised listing (keywords, screenshots, description). We manage any reviewer feedback, confirm live status, and provide 30-day post-launch monitoring and bug fixes.
Transparent App Development Packages β Concept to App Store
All plans are one-time project fees β 30% deposit to begin, 40% at mid-project milestone, 30% on delivery. Every app includes UI/UX design, development, testing, App Store submission, and 30-day post-launch support.
π Worldwide Service: We build apps for businesses worldwide β configuring for relevant markets, languages, payment gateways, and compliance requirements. All apps are built for global distribution with App Store submission in your target markets.
Starter β MVP
App MVP
Minimum Viable Product β core features, one platform, fastest path to market
Payment structure: 30% deposit to begin β 40% at mid-project milestone β 30% on final delivery. All prices in USD. Apple Developer Account ($99/yr) and Google Play Account ($25 one-time) are paid directly to Apple/Google by the client β not included in project fees.
π³ Stripe & PayPalπ Full Source Code Ownershipπ± App Store Submission Includedπ Worldwide
App Development FAQ
Frequently Asked App Development Questions
Clear answers about cross-platform vs native, timelines, costs, App Store submission, ongoing maintenance, and what you need to get started.
For most business apps, cross-platform development using Flutter is the optimal choice β a single codebase produces native-performance apps for both iOS and Android at 40β60% of the cost of building two separate native apps. Native development (Swift for iOS, Kotlin for Android) is recommended only when your app requires deep hardware integration, heavy graphics processing, or platform-specific features not available to cross-platform frameworks. We assess your specific feature requirements during our free consultation and give you an honest recommendation β not the option that is most expensive to build.
An MVP with core features typically takes 8β12 weeks. A full-featured professional app for iOS and Android takes 12β20 weeks. Enterprise apps with complex custom backends and multiple user roles take 20β36 weeks. Timeline depends on feature complexity, number of screens, backend requirements, and third-party integrations required. We provide a detailed milestone timeline with clear deliverables at each stage during project scoping β you always know exactly where development stands.
Yes β App Store and Google Play submission is included in all plans. We prepare all required metadata (app name, description, keywords, screenshots, preview videos), set up your developer accounts if needed (Apple Developer Program at $99/year and Google Play account at $25 one-time β paid directly to Apple/Google), submit the build for review, handle any reviewer feedback, and confirm your app is live. We also include App Store Optimisation (ASO) β keyword research and listing optimisation to improve discoverability within the stores.
A Progressive Web App (PWA) is a website that behaves like a native app β installable on a home screen, capable of push notifications, functional offline, and loading instantly. PWAs are cost-effective for businesses wanting app-like experiences without App Store submission or dual-platform development. They suit content-driven apps, e-commerce experiences, and internal business tools. However, PWAs cannot access all device hardware, are not distributed through App Stores (limiting discoverability), and have lower engagement rates than native apps. We recommend PWAs when budget is the primary constraint or the App Store is not a strategic acquisition channel.
Yes β 100% source code ownership, permanently. Upon final payment, all code repositories, design files, server credentials, and App Store developer accounts are transferred fully to you. There are no licensing fees, no ongoing dependency on us to keep the app running, and no restrictions on what you do with the code. You can hand it to another developer, modify it internally, or sell the app β it is entirely yours. This is non-negotiable policy for us β we do not build on proprietary frameworks that lock clients in.
Every mobile app requires ongoing maintenance after launch. Apple and Google release iOS and Android updates regularly β each can introduce breaking changes that require app updates to maintain compatibility. Beyond OS updates, apps need: bug fixes from real-world usage, performance improvements, security patches, and new features based on user feedback. We offer monthly maintenance retainers covering OS compatibility updates, critical bug fixes, crash monitoring, and minor feature enhancements. We strongly recommend budgeting for maintenance from the outset β unmaintained apps typically become unusable within 12β18 months.
Free App Consultation
Ready to Put Your Business in Every Customer’s Pocket β with a Custom App Built to Last?
Get a free app consultation β we will listen to your idea, assess the right platform and approach for your budget and timeline, and provide a clear scope estimate with no obligation. Whether you have a fully defined spec or just an idea on paper, we will help you understand exactly what building your app involves. No cost, no commitment, no pressure.
β Free consultationβ Full source code ownershipβ App Store includedβ Worldwide service
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