Mobile App Development Services

Cross-platform mobile apps built for how your business actually works.

We build iOS and Android apps on a single Flutter codebase, which means faster delivery and less to maintain long-term. Every project starts with a fixed price and ends with you owning every line of code. We have been doing this since 2015 for businesses across 20+ countries.

Flutter Dart Firebase REST API MySQL AWS Google Play App Store

Start Your Project

Free consultation · 24hr response

Trusted by companies across the USA

The SIR Group

Mobile App Development for Your Business

A home services company we worked with was running their field operations entirely through text messages. Technicians would text the owner, the owner would text back job details, and customer confirmations were a separate thread in Gmail. Nothing was connected, and jobs were getting double-booked about once a week. We built them a Flutter app for technicians and a web portal for the back office, connected through Firebase for real-time updates. The double-bookings stopped. The owner stopped being the manual relay between customers and crew.

That kind of project is exactly where mobile app development earns its cost. When your team is spread across locations, or your customers need something in their pocket, a purpose-built app does what spreadsheets and group chats cannot. We build apps for iOS and Android from a single Flutter codebase, which typically cuts development time compared to building two separate native apps. We do reach for native development when a project relies heavily on platform-specific hardware like Bluetooth LE or NFC, but for most business apps, Flutter gives you everything you need without the overhead.

We work with businesses that need anything from a customer-facing booking app to an internal operations tool to a full marketplace with payments and user accounts. Our team is based in Gandhinagar, India, which means active development happens while your US workday wraps up. You send us questions or feedback at 5 PM Eastern and wake up to tested builds and answers. We use Slack, Zoom, and Loom so nothing gets buried in a time zone gap. Every project is scoped to a fixed price before we write a line of code.

Why Choose Mobile App Development

One Codebase, Both Platforms

Flutter lets us ship your app to the Google Play Store and Apple App Store from a single codebase. That means your iOS and Android users get feature parity without you paying to build the same thing twice.

Fixed Price Before We Start

We scope the project, agree on a number, and that is what you pay. No hourly billing that expands quietly, and no surprise invoices when testing runs long.

Working Build in Weeks, Not Months

You see a testable build within the first few weeks of development, not at the end of a multi-month black box. That means you can redirect before a wrong assumption becomes an expensive one.

Firebase Keeps It Real-Time

When your app needs live updates, like a driver location feed or a live order queue, we use Firebase to push data instantly rather than making the app poll a server every few seconds.

You Own Everything

All source code, all assets, all data structures transfer to you at project close. We sign an NDA and a work-for-hire agreement on day one, so there is never a question about who owns what.

Built to Handle Growth

We architect the backend on AWS with the assumption that your user base will grow. Adding capacity should be a configuration change, not a rebuild.

Our Mobile App Development Services

Cross-Platform App Development

We build iOS and Android apps in Flutter so both platforms share one codebase and one update cycle. Most business apps do not need separate native builds, and this approach gets you to market faster.

UI/UX Design for Mobile

We design interfaces that follow platform conventions so users do not have to learn anything new. The goal is an app your team or customers actually want to open, not one they tolerate.

API and Third-Party Integrations

We connect your app to the systems you already use, whether that is Stripe for payments, Twilio for SMS, or your existing ERP via REST API. The app fits your stack, not the other way around.

Backend and Database Architecture

We build the server-side logic on AWS and structure your data in MySQL or Firebase depending on what the app actually needs. A real-time field ops tool has different data requirements than a catalog browser.

App Rebuild and Modernization

If you have an app that is slow, crash-prone, or stuck on an outdated framework, we can assess what is salvageable and rebuild the rest. Sometimes a rewrite is faster than patching; sometimes it is not. We will tell you which.

Post-Launch Support

After launch, we stay available for bug fixes, OS update compatibility, and new feature sprints on a retainer basis. We set response time expectations upfront so you are not guessing when something breaks.

How We Deliver Mobile App Development Projects

No 47-slide proposal deck. No three-month discovery phase. Here is how a project moves from your idea to working software.

Start Your Project
1

Discovery & Planning

Before we touch Figma or write a line of Dart, we spend time in your actual workflow. We map how your team or customers currently do the thing the app will replace, because the gaps in that process are where most apps either win or fail. You get a documented scope, a fixed price, and a clear timeline before anything starts.

2

UI/UX Design

We design in Figma and share interactive prototypes you can click through before development begins. This is where we catch layout assumptions that would have cost two weeks to fix in code, and it is where you get to say the navigation feels wrong before the navigation is built.

3

Development

We build in two-week sprints and share a testable build at the end of each one. You are not waiting until month four to see something. If a feature needs to shift based on real use, we catch it early enough to adjust without blowing the budget.

4

Testing & QA

We test on real devices across iOS and Android, not just simulators. We cover edge cases like spotty network connections and low-storage states because those are the conditions where field apps tend to break, and that is usually when it matters most.

5

Launch

We handle the App Store and Google Play submission process, including metadata, screenshots, and compliance requirements. Both stores have review quirks that can delay a launch by days if you do not know them. We have submitted enough apps to know what reviewers flag.

6

Support & Growth

After launch, we monitor crash reports via Firebase Crashlytics and address OS-level breaking changes, typically within two business days of a major iOS or Android release. New features get scoped and priced as separate fixed-price sprints so you always know what the next improvement will cost before it starts.

Why Choose Aneri Developers

Your Work Advances While You Sleep

Our team is based in Gandhinagar, India, which means active development runs during your night. You close your laptop at 6 PM Eastern and wake up to a build update, a Loom walkthrough, or answers to questions you sent the evening before.

Same Engineers, Start to Finish

We do not hand your project to a junior team after the senior engineer closes the sale. The people who scope your app are the people who build it. That matters more than it sounds when the edge case shows up in week seven.

Operating Since 2015

We have been building software for US businesses for over a decade, across 500+ projects ranging from simple MVPs to platforms with tens of thousands of active users. That history means we have seen what breaks and we build around it.

Communication That Does Not Disappear

Every project runs through a shared Slack channel, with weekly Zoom check-ins and Loom recordings for build walkthroughs. Nothing important lives only in someone's inbox. If you need to pull in a new stakeholder mid-project, the full history is there.

Clients Across 20+ Countries

We have shipped apps for businesses in industries ranging from logistics and healthcare to retail and professional services, across more than 20 countries. The problems change; the process we use to solve them does not.

NDA and IP Agreement on Day One

We sign a mutual NDA and a work-for-hire agreement before the project kicks off. All code, all design files, and all database schemas transfer to you at project close. We keep nothing.

Frequently Asked Questions

Common questions about mobile app development.

For most business apps, Flutter is the right call. You get one codebase that runs on both iOS and Android, which keeps development and maintenance costs lower. The honest exception is if your app needs deep integration with platform-specific hardware, like Bluetooth LE for medical devices or NFC for access control. In those cases, native development is still worth the extra cost. We will tell you which situation you are actually in during discovery.

A focused MVP with core functionality typically takes 10 to 16 weeks from a signed scope to App Store submission. More complex apps with multiple user roles, payment flows, or third-party integrations run longer. The variable that affects timelines most is how quickly decisions get made on your side, not how fast we can build.

We spend the first phase defining scope in detail: screens, features, integrations, and edge cases. Once we both agree on that document, we price the project and that number does not move unless the scope changes. If you want to add a feature mid-project, we scope and price it separately before touching it. There are no surprise invoices.

Yes, completely. We sign a work-for-hire agreement before the project starts, and at close we hand over the full repository, all design files, and any credentials we created. You can take the code to any other developer or team after we finish. We have no interest in creating dependency.

Our team is in India, roughly 9-12 hours ahead of US time zones. In practice, that means we are building while you sleep and your feedback drives the next day's work. We maintain overlap with US Eastern mornings for live Zoom calls when needed. Everything else runs through Slack and async Loom videos so context never gets lost.

Usually, yes. If your existing platform exposes a REST API, we can connect to it. We have integrated mobile apps with tools like QuickBooks, Stripe, Salesforce, Twilio, and various custom-built backends. If your current system does not have an API, we can discuss what it would take to build one.

We offer post-launch retainers that cover bug fixes, OS compatibility updates, and crash monitoring via Firebase Crashlytics. When Apple or Google releases a major OS version, we test your app against it before users start complaining. New features are scoped as separate fixed-price sprints, not open-ended hourly work.

The first step is a conversation about what you are trying to build and what problem it needs to solve. Bring whatever you have, a napkin sketch, a spreadsheet, a list of requirements, or nothing at all. We will ask enough questions to understand the scope and come back with a proposal that outlines what gets built and what it costs.

Tell us what your app needs to do.

Share your idea or your current problem with us and we will put together a clear scope and a fixed price. No commitment required to have that first conversation.

Free Consultation
No Commitment
NDA on Day One

Describe Your Project

Include as much detail as you want. We typically reply within 24 hours.

Get a Quote WhatsApp Meeting Email Us
Get a Quote WhatsApp Schedule a Meeting Email Us