Mobile Apps

Mobile App Development

Mobile Apps That People Actually Use

Cross-platform iOS and Android apps built with Flutter, native Swift or Kotlin where hardware demands it, and a .NET or NestJS backend. We design in Figma and submit to both stores for you.

Example order tracking and field jobs mobile screens
Illustrative example

What we handle

  • Android App Development
  • iOS App Development
  • Cross-Platform Apps
  • Business Apps
  • Ecommerce Apps
  • App Maintenance and Updates

What is mobile app development?

A business app is rarely just the app. It needs an API and database behind it, an admin panel for the team that manages users and content, push notifications, and developer accounts with Apple and Google in your organization's name. Planning those pieces together is what keeps an app maintainable after launch.

Most requests fall into two groups: customer apps for booking, ordering, tracking and support, and field and staff apps for inspections, job sheets and deliveries, often connected to an ERP or CRM. Field apps usually have to keep working with weak or no signal and sync later, which shapes the data design from day one.

We choose between Flutter and native Swift or Kotlin after reviewing the features: Flutter for most business apps, native where Bluetooth peripherals, health sensors or low-level camera and AR work need it. See cross-platform app development for the trade-offs.

Delivered remotely from our Islamabad headquarters, with scheduled video meetings in your working hours; on-site visits only when agreed in the contract. See the countries we serve.

Illustrative example

Mobile app development: problems it solves

Common problems

  • Separate iOS and Android codebases add a second build and test cycle, and features drift apart over time
  • The app crashes or loses data when field users work in areas with poor signal
  • Store review rejects a submission over missing privacy declarations or policy issues
  • The existing backend cannot handle the request volume a mobile app generates

How we approach them

  • Flutter where it fits: one codebase, shared business logic and one QA cycle for both platforms
  • Offline-first design for field apps, with local storage, a background sync queue and conflict rules
  • Store policy and privacy declarations checked before each submission, so review issues are caught early
  • An API backend load-tested against expected use before launch, hosted on the cloud you choose

A good fit when

  • People use it often and on the move, and benefit from notifications, the camera, location or offline use
  • Field or shift staff need a tool that works with poor signal and syncs later
  • Customers in your sector already expect to book, order or track through an app

Another option may suit you better when

  • Use is occasional and mostly at a desk: a responsive web application avoids store reviews and installs
  • You want to test demand first: a progressive web app or a small pilot can answer that before a full app
  • The app would only repeat content that is already on your website

What's included in mobile app development

Linked cards open a dedicated page with its own scope, fit and questions.

Not sure which of these you need? Talk to us on WhatsApp.

Usually in scope

  • UX design of the agreed screens for iPhone and Android
  • The app, its API and database, and an admin panel where the plan includes one
  • Sign-in, push notifications and the integrations named in the plan
  • Testing through TestFlight and Google Play internal testing, then store submission

Not included unless agreed

  • Apple and Google developer account fees (the accounts are opened in your organization's name)
  • Devices or platforms not named in the plan, such as watches, tablets or in-car systems
  • Marketing the app after launch
  • Support beyond the agreed period, which is set out in a support plan
Illustrative example

Benefits of mobile app development

1

Both Platforms

One app for iPhone and Android users, usually from a single Flutter codebase, so neither group waits for features.

2

Enhanced Engagement

Apps keep people more engaged than a mobile website. They send alerts, work without internet, and feel personal.

3

Revenue Growth

Earn money in ways that fit your app. Sell items inside it, offer memberships, run ads, or sell products. We help you keep customers coming back.

4

Brand Presence

An installed app sits on your customer's home screen, a step closer than a bookmark or a search.

How we work

How we deliver mobile app development

Custom software built around the way your business works. Five steps, with a free pilot of 2 to 3 key modules before the full build.

  1. Step 1: Understand

    We learn how your business works.

    Your requirements, workflow, challenges and goals, understood before anything is recommended.

  2. Step 2: Plan

    We design the right solution around your workflow.

    Modules, workflows, roles, approvals, reports and integrations, agreed before development.

  3. Step 3: Select Technology

    Choose the right technical foundation.

    Technology options matched to your users, security, budget and growth, not one fixed stack.

  4. Free pilot

    Step 4: Pilot

    Test our work before full project development.

    Free. You choose 2 to 3 key modules and we build them first, so you can judge our work.

    The full project starts only after you approve the pilot.

  5. Full project

    Step 5: Build & Scale

    From approved pilot to complete digital system.

    Full development, testing, deployment, training and support, built to grow with you.

Technologies We Use for Mobile Apps

Flutter for most apps; Swift and Kotlin for hardware-heavy modules; ASP.NET Core or NestJS for the API and Next.js for admin panels. Confirmed in Select Technology.

FlutterSwiftKotlinReact NativeASP.NET CoreNestJSNext.jsPostgreSQLFirebase App DistributionTestFlightApp Store ConnectGoogle Play Console
Illustrative example

Timelines and what we need from you

We do not quote a timeline before we understand the work. After the Understand and Plan steps you get a written plan with phases and target dates for the scope you approve. The free pilot of 2 to 3 key modules comes first, and the delivery plan for the full build is confirmed after you approve the pilot. Any requirement outside the approved scope is reviewed and agreed before extra work begins.

Store review is outside our control: Apple and Google set their own review times, so release dates allow for it.

What you provide

  • Apple and Google developer accounts in your organization's name, or approval for us to open them for you
  • A list of the devices and operating system versions your users have
  • Content, brand assets and your privacy policy
  • Testers who install each build and confirm sign-off

Want a plan built around your project? Share your requirements through our contact form.

Illustrative example
FAQ

Mobile app development FAQ

People also ask about mobile app development. Here are direct answers.

Flutter compiles a single Dart codebase into native ARM code for both iOS and Android. The result is one project to maintain, one QA cycle to run, and usually less engineering effort than two separate native builds. Performance is near-identical to native for the vast majority of business applications, with smooth animation, fast startup, and full access to device APIs. Flutter is our usual recommendation for business apps, confirmed after we review your feature requirements. The exception is apps requiring deep integration with proprietary hardware SDKs, such as specialized medical sensors or Bluetooth peripherals with platform-specific drivers, where Swift or Kotlin is the more practical choice.

We recommend a native build in Swift (iOS) or Kotlin (Android) when the app needs capabilities that Flutter's platform channels cannot cleanly abstract: background health sensor streaming via Apple HealthKit, Bluetooth Low Energy peripherals with complex custom profiles, CarPlay or Android Auto integration, or platform-specific AR using ARKit or ARCore at a low level. For these cases, we build the affected module natively and, where both platforms are needed, maintain two separate native projects. We are transparent about the trade-off upfront: native dual builds take noticeably more engineering time than an equivalent Flutter project.

It depends on the number of screens and user roles, the backend and integrations, offline needs and any hardware access, so we do not quote a timeline before we understand the work. After the Understand and Plan steps you get a written plan with phases and target dates for the scope you approve. The free pilot of 2 to 3 key modules comes first, and the delivery plan for the full build is confirmed after you approve it. Apple and Google set their own store review times, so release dates allow for review.

Yes, fully. For the App Store, we configure App Store Connect, prepare screenshots at the iPhone sizes Apple requires, plus iPad if applicable, write the app description and keyword field, complete the privacy manifest, and submit for review. For Google Play, we configure the Play Console, prepare the feature graphic and screenshots, write the store listing, complete the data safety form and content rating questionnaire, and release to the production track. If Apple or Google raises a review issue, we respond and resubmit. Store submission is part of our delivery, not a separate service.

Most of our mobile apps connect to an ASP.NET Core or NestJS backend that exposes a versioned REST API over HTTPS. Authentication is handled with JWT tokens, and sensitive data is stored in PostgreSQL or SQL Server, with personal data fields encrypted where the plan calls for it. We also build a companion web panel in Next.js for operations or admin teams who need to manage data without going through the mobile app. Push notifications are delivered via APNs (Apple) and FCM (Google). If you already have an existing backend or a third-party API, we integrate against it rather than rebuilding.

Yes. We build iOS and Android apps for UK companies, delivered remotely, usually from one Flutter codebase that ships to both stores, built to be hosted in the UK or EU where required and designed to support your GDPR obligations (compliance remains your organization's responsibility and is confirmed by your own assessment). Most projects include a matching admin panel so your team can manage bookings, users and reports in one place. Our UK custom software development page covers the wider UK offer.

We design for these requirements from the start rather than adding them afterwards. Where GDPR applies, data collection is limited to its purpose, consent is part of onboarding and users can have their data deleted. Where HIPAA applies, health data can be encrypted on the device with Keychain or Keystore, connections can use certificate pinning, and data access can be logged. Card data is not stored in the app: payment SDKs such as Stripe or Braintree handle tokenization, which keeps PCI DSS scope small. We design to support your obligations; compliance remains your organization's responsibility and is confirmed by your own assessment.

Updated Since 2013 · 860+ clients

About this mobile app development guide

This page is published by Timeline Digital, a custom software company founded in Islamabad in 2013. We have delivered 1,500+ projects for 860+ clients across 25+ countries.

Author

Usama Asif

CEO and CTO, Timeline Digital. Founded the company in 2013 and has led its production software work for businesses and enterprise clients since then.

Delivery team

Timeline Digital Engineering Team

1,200+ developers and 85+ management professionals, including group-company employees.

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Made in Islamabad, Pakistan

Mobile App Development for Pakistani Businesses

Timeline Digital builds Android and iOS apps for businesses and startups across Pakistan. We build with Flutter for one codebase on both platforms, add offline support for weak signal areas, and build the key screens first as a pilot, with support in Urdu and English from our Islamabad team.

Chat on WhatsApp in Urdu or English
  • One app for Android and iOS

    We use Flutter to build for both platforms from one codebase, which keeps your app consistent and simpler to maintain.

  • Works on weak connections

    Apps for field staff, riders, and agents work offline and sync when the signal returns, which suits real conditions across Pakistan.

  • Local payments and Urdu

    We add JazzCash, EasyPaisa, and card payments, and can build Urdu screens for staff or customers.

  • A pilot, then code ownership

    We build the most important screens first as a pilot for you to test, and the source code and app store accounts are yours on full payment.

Common questions from Pakistan

Do you build for both Android and iPhone?

Yes. We build for Android and iOS, usually with Flutter so both platforms come from one codebase and stay consistent. We also handle app store submission and the source code and store accounts are yours on full payment.

Can the app work without internet?

Yes. For field teams, riders, and agents across Pakistan, we build offline support so the app keeps working without a signal and syncs when the connection returns.

Can the app take JazzCash or EasyPaisa payments?

Yes. We integrate local payment options such as JazzCash and EasyPaisa, along with card gateways, so your Pakistani users can pay the way they prefer.

Free pilot

See working software before you commit

Before you commit to the full project, we build 2 to 3 of your key modules as working software, free of charge. Your team tests the pilot, and the full build starts only after you approve it.

See how the free pilot works
  1. Understand

    We learn your requirements and how your organisation works today.

  2. Select pilot modules

    Together we choose 2 to 3 key modules that prove the solution.

  3. Build the working pilot

    We build those modules as real, working software, free of charge.

  4. You test it

    Your team uses the pilot. The full project starts only after you approve it.

Start a conversation

Tell us how your business works.

Describe what is slowing your team down. We will help you work out what to build, and how a free pilot lets you judge our work before the full project.

Prefer WhatsApp? Start a chat

What happens next

  1. You send a short brief

    The problem, the people involved and any target date. A senior engineer replies within 4 business hours.

  2. We understand your workflow

    A first call about how your business works today. An NDA can be signed before you share details.

  3. You test a free pilot

    You choose 2 to 3 key modules and we build them first, so you judge real software before the full project.