Mobile App Development Services

Native and cross-platform apps shipped on schedule

We build mobile apps for businesses where the product is the app — and for businesses where the app is one channel among many. Either way, the same engineering discipline applies: thoughtful UX, solid architecture, App Store launch readiness.

Stacks we ship on

• Native iOS — Swift and SwiftUI for App Store apps that need platform polish.
• Native Android — Kotlin and Jetpack Compose for Play Store apps.
• React Native — cross-platform when you need both stores and want to share 90% of the codebase.
• Flutter — for design-rich apps where a custom UI is core to the experience.
• Backend integration — REST and GraphQL APIs, Firebase, Supabase, custom backends.

What every engagement includes

• Discovery, user research and wireframes
• UX/UI design by our in-house design team
• Engineering with weekly milestones and shared Linear/Jira
• Automated testing and CI/CD
• App Store and Play Store submission, ASO setup
• Post-launch monitoring with Crashlytics and Sentry
• Three months of bug-fix support included

Who this is for

An app is the right investment when your value proposition genuinely requires one — push notifications, offline use, hardware access (camera, GPS, sensors), high-frequency repeat use, or platform-specific commerce. The wrong investment when a responsive website would solve the same problem at a tenth of the cost (most “marketing apps” fit this category), when you have not yet validated the underlying product (build a web MVP first), or when you do not have budget for the post-launch maintenance retainer (apps without maintenance break within 12 months guaranteed).

Pakistan-specific mobile considerations

Building apps for Pakistani users requires specific engineering choices most international agencies overlook. First, device fragmentation — most users are on mid-range Android (Infinix, Tecno, Vivo, Xiaomi) running Android 9–13 on 3–4GB RAM, not the high-end Pixel the developer uses; we test on actual mid-tier hardware before release. Second, network reality — 4G is widespread but inconsistent, and many users routinely switch to 3G or Wi-Fi calling, so offline-first architecture and aggressive caching matter. Third, payment integration — JazzCash, Easypaisa, Raast, NayaPay, and card-on-file via local PSPs (Safepay, PayFast) are non-negotiable for any commerce app targeting Pakistan. Fourth, language and right-to-left — proper Urdu support including Nastaliq fonts where appropriate, not just translation.

Pricing & engagement models

Fixed-fee project work, with payment milestoned to design approval, alpha, beta, and store-submission stages. Honest ranges: MVP scope (one platform, 4–6 core features, basic backend) PKR 800,000 to PKR 2,500,000; production app on both platforms with full backend, push, payments, analytics PKR 2,500,000 to PKR 8,000,000; enterprise app with complex integrations PKR 8,000,000+. Maintenance retainer post-launch: PKR 80,000 to PKR 250,000 per month, covering OS updates, SDK refreshes, bug fixes, and minor feature work.

App Store Optimisation

Listing copy, keywords, icon, screenshots — the same care our SEO team brings to web rankings, applied to App Store search.

Pair with web + marketing

Most apps need a marketing site, paid acquisition, and lifecycle email to grow. That means web design, PPC and email marketing alongside the app build. We can run all four. Tell us about the product.

How to verify what we are claiming

This page is full of numbers. Here is how to check them before you take the call: read our 212 Google Business reviews (the link goes straight to the Google Maps listing — search “One Source Soft Karachi” if you prefer). We are also listed on Clutch where buyers leave verified reviews. Anyone in Mobile Apps who is not happy to point you at a public review profile is asking you to take it on faith, and that is rarely how good agency relationships start.