Available for new projects

Old-school care.Modern Flutter apps.

I'm Saadullah Khan, a freelance Software Engineer. I build Android and iOS apps at a fixed price, and I hand them over only when they're ready for your users.

Portrait of Saadullah Khan

What I build for you.

Every project is quoted at a fixed price, so you know the cost before I write a line of code. Tap a photo to see what's inside.

Selected work.

A client app and two products of my own.

Well Done app screenshot
Client project

Well Done

A productivity app that makes task management social and game-like. Friends give a thumbs up when you finish on time, and a playful punch when you miss a deadline.

I built the reminders and notifications, progress charts, and unlockable achievement badges.

View on Play Store
PScreenshots soon
My own app

Papers

A product I'm building myself, nearly ready to launch on the Play Store.

Designed and built by me.

Play Store link coming soon
FScreenshots soon
My own app

Funwar

Another product of my own, nearly ready to launch on the Play Store.

Designed and built by me.

Play Store link coming soon

Packages, before and after.

Every package has a clear start, a clear result and a fixed price. Not sure which one you need? Tell me where you are now.

Rescue

A crash and speed check, with fixes

BeforeMy app crashes, lags or gets bad reviews.

AfterA stable, faster app, plus a short report of what I found and fixed.

  • Review of your code and crash reports
  • Fixes for the biggest problems
  • Performance check and speed fixes
Get a fixed quote

Screens

Your design, turned into Flutter

BeforeI have a design, but no working app.

AfterWorking screens that match the design on every phone size.

  • Responsive layouts for different phone sizes
  • Reusable widgets, so new screens are quick
  • A smooth, accessible interface
Get a fixed quote

Backbone

Login, data and notifications that work

BeforeMy app looks finished, but has no real data or login.

AfterLogin, database, notifications and APIs working end to end.

  • Firebase (Auth, Firestore, Cloud Messaging) or Supabase
  • REST API connection with JSON
  • Offline storage and sync where needed
Get a fixed quote

Launch

From idea to the store

BeforeI have an idea, and nothing else yet.

AfterA client-ready app in the store, built and tested.

  • Planning, screens and the full Flutter build
  • Firebase or API setup
  • The client-ready check before handover
  • A store-ready build and help publishing
Get a fixed quote

Care

Monthly care for a live app

BeforeMy app launched, and then nobody looked after it.

AfterUpdates, fixes and small changes every month, so it stays healthy.

  • Updates for new Android and iOS versions
  • Bug fixes and small changes
  • A short monthly note on what I did
Get a fixed quote

Every package includes

  • The price and the plan in writing before work starts
  • The client-ready check before handover
  • 14 days of free fixes after delivery
  • The source code is yours once you have paid in full
  • Your project stays confidential, and I will sign an NDA if you need one

Build your app, see the plan.

Switch on what your app needs. You get a rough size and time right away. The exact fixed price comes in your written quote.

How we work together.

Fixed price, clear steps, no surprises.

  1. You send a brief.

    Tell me what the app should do using the project form on this site. A short call is optional.

  2. I quote a fixed price.

    You get the scope, the price and the delivery plan in writing before any work starts.

  3. I build it in milestones.

    You see working builds along the way, so there are no surprises at the end.

  4. I check it, then hand it over.

    I only call an app finished when it is ready for your users. Then I help you launch it.

The client-ready check.

Before I hand anything over, every app goes through this.

  • Crashes found and fixed before delivery
  • Performance checked, so screens load smoothly
  • Tested on different phone sizes
  • Offline and error states handled
  • Firebase, API and notification flows tested end to end
  • Store-ready build, with help publishing
Approved

Where I've worked.

  1. Sep 2025 – May 2026

    Flutter Developer

    Code Stars Pvt Limited
    • Built and maintained production Flutter apps for Android and iOS
    • Integrated REST APIs and Firebase/Supabase
    • Fixed performance bottlenecks and reduced the app crash rate
    • Worked with designers and backend engineers in agile sprints
  2. Jul 2025 – Sep 2025

    Flutter Developer

    Global Financial Media
    • Built real-time Flutter apps that display financial data
    • Used MVVM and Isar for scalable code and offline sync
    • Designed responsive dashboards for financial data
  3. Oct 2023 – Dec 2023

    Flutter Developer (Internship)

    Al-RightTech Pvt Limited
    • Built chat app features and interface screens
    • Learned state management with Provider and GetX
    • Took part in code reviews and presented finished features

My CV

Everything on this page in one document. Read it online or save a copy.

Education: Bachelor of Software Engineering, Kohat University of Science & Technology (2019 to 2023)

Certificates: Flutter Development (Kamyab Jawan Program), Web, Software & Mobile App Development (NAVTTC)

Languages: Pashto, Urdu, English

Tools I work with.

  • Flutter
  • Dart
  • Provider
  • Riverpod
  • Bloc
  • GetX
  • MVVM
  • Clean Architecture
  • Responsive UI
  • Material Design
  • App Localization
  • Firebase Auth
  • Firestore
  • Cloud Functions
  • Supabase
  • PostgreSQL
  • Edge Functions
  • Cloud Messaging
  • Cloudflare
  • WebSockets
  • REST APIs
  • JSON
  • Isar
  • Hive
  • Git and GitHub
  • Performance tuning
Portrait of Saadullah Khan
Saadullah, Islamabad

Go on, pick it up and toss it. Double-click to put it back.

About me.

I'm Saadullah Khan, a software engineer from Islamabad, Pakistan. For about three years I've built Android and iOS apps for healthcare, enterprise, government and consumer products. Now I work as a freelancer, so you talk directly to the person who builds your app.

I don't call an app finished until I'm completely confident it's ready for your users. I go through every detail until I'd be proud to launch it as my own, and I don't stop until you're satisfied too. When my client is happy, I'm happy.

Outside client work I build my own apps. Two of them, Papers and Funwar, are nearly ready for the Play Store.

Based in
Islamabad, Pakistan (UTC+5)
Languages
Pashto, Urdu, English

Tell me about your app.

Fill in this short brief and I'll come back with a fixed-price quote.

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