Mobile App Development

Mobile app development at TNXBD IT Solution begins with your business goal, not with code. We build cross-platform apps with Flutter so a single codebase runs on both iOS and Android, giving your users a fast, native-feeling experience on either device. Whether you need a customer-facing app or an internal tool for your team, we handle the work from planning through release.

Overview

Customers and staff in Bangladesh spend far more time on phones than on desktop computers. A mobile app puts your service, booking flow, ordering process or internal workflow directly in their hands, reachable in a few taps.

Flutter lets us develop one app that works on both platforms instead of maintaining two separate codebases. That keeps the build simpler, the interface consistent and long-term maintenance easier. We cover the interface design, the app logic, the connection to your backend or database, testing, and publishing to the app stores.

What's included in our mobile app development service

• Requirement study and feature planning for your app
• Mobile UI/UX design for iOS and Android screens
• Flutter development using a single shared codebase
• API, database and third-party service integration
• Login, payment and notification flows where needed
• Testing on real devices before release
• Play Store and App Store publishing support
• Handover with documentation and a walkthrough

Benefits of a cross-platform mobile app

• One build, two platforms. The same app reaches iOS and Android users without a second development cycle.
• Consistent experience. Screens, features and updates stay aligned across both platforms.
• Faster to reach your users. A shared codebase means less duplicated work during development and updates.
• Connected to your systems. Your app can exchange data with your existing software, website or database.
• Built for real use. We test on actual devices so the app behaves well on the phones your users own.

Who our mobile app development is for

We work with businesses and organisations that want a mobile channel for their service or operations, including:

• Businesses that want orders, bookings or enquiries through an app
• Service providers who need appointment or scheduling tools for customers
• Teams replacing paper-based or manual field processes
• Organisations that already have a web system and want a mobile companion
• New ventures that need a first version of their app to test with real users

How our process works

1. Discovery. We discuss your goal, your users and the features the first version needs.
2. Design. We prepare the app screens and flow so you can see the interface before development.
3. Development. We build the app in Flutter and connect it to the backend services it needs.
4. Testing. We check the app on real devices, fix issues and confirm the agreed features work.
5. Launch and handover. We support the store submission and hand over the project with documentation.

Why choose TNXBD IT Solution

• We work across mobile apps, web applications, custom software and AI, so your app can connect to the rest of your systems.
• We agree on the scope before development starts, so you know what is being delivered.
• You can reach us by phone, email or at our office in Tangail.
• Ongoing updates, fixes and new features can be arranged after launch.

Frequently asked questions

How much does mobile app development cost?

Cost depends on the number of screens, the features, the integrations and the platforms your app needs. There is no single figure that fits every project. Share your requirements with us and we will review them and prepare a quotation for your scope.

How long does it take to build a mobile app?

The timeline depends on the size and complexity of the app, how many integrations are involved, and how quickly feedback and content come from your side. Contact us with your requirements and we will discuss the expected schedule with you.

Do you develop apps for both iOS and Android?

Yes. We develop with Flutter, which produces one app that runs on both iOS and Android from a shared codebase, so features and interface stay consistent across the two platforms.

Can you work on an existing mobile app?

In many cases, yes. We can review an app that is already in use, understand its current structure, and then discuss which improvements, fixes or new features are realistic. Send us the details and we will advise.

What happens after the app is launched?

We hand over the project with documentation and a walkthrough of the code and the app stores setup. Maintenance, updates and new feature work can be arranged separately, depending on what your app needs over time.

Let's discuss your app

If you have an app idea, or an existing app that needs work, tell us about it. Contact TNXBD IT Solution by phone at +880 1884-444299 or email info@tnxbd.com. You can also visit our office at Fire Service Market, 2nd Floor Old Bus Stand, Tangail 1900, or reach us through the contact page at https://tnxbd.com/contact.