iOS & Android App Development Services

One codebase, two stores, zero compromise on quality.

We build iOS and Android apps for US businesses that need something real: a working product their customers actually use. From first wireframe to App Store approval, we handle the full build under a fixed-price contract so you know what you are getting before a single line of code is written.

Flutter Dart Firebase REST API MySQL AWS Google Play App Store

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Trusted by companies across the USA

The SIR Group

iOS & Android App Development for Your Business

A retail brand we worked with had a loyalty program living inside a third-party platform they did not control. Every time they wanted to change a reward tier or push a notification, they had to submit a support ticket and wait. They came to us wanting their own app. Twelve weeks later, their customers were redeeming points through a custom iOS and Android app that connected directly to their existing inventory system via a REST API. The support tickets stopped.

That is the kind of problem iOS and Android app development actually solves. Not "going mobile" for its own sake, but replacing a friction point your customers hit every time they try to do business with you. Whether that is a field service app for your technicians, a customer-facing product for consumers, or an internal tool your operations team uses daily, the core question is the same: what does this app need to do, and how do we make it work reliably on both platforms without doubling the budget?

We build primarily with Flutter and Dart, which gives us a single codebase that runs natively on both iOS and Android. That is not a shortcut. It is a deliberate choice that cuts development time by roughly 40% compared to building two separate native apps, while still giving you full access to device features, smooth animations, and a UI that feels at home on each platform. We pair that with Firebase for real-time data and authentication, AWS for backend infrastructure when the project needs it, and REST APIs to connect your app to whatever systems you already run. One honest caveat: if your app depends heavily on Bluetooth LE hardware or very deep NFC integration, native development is still the better path. Flutter has improved a lot in that area, but some hardware-layer use cases still favor platform-specific code.

Why Choose iOS & Android App Development

Working Prototype in 3 Weeks

You see a clickable, functional build of your app within the first three weeks, not at the end of a six-month contract. That means you can change direction before it costs you anything significant.

Fixed Price Before We Start

Every project is scoped and priced before any work begins. You approve the number, we build to it. There are no hourly surprises at the end of the month.

Both Stores, One Build

Flutter lets us ship to the App Store and Google Play from a single codebase, which keeps your maintenance overhead low and your two app versions in sync by default.

Device-Ready Performance

We test on real iOS and Android devices throughout the build, not just simulators. Performance issues that only appear on a four-year-old Samsung mid-range phone get caught before your users find them.

You Own Everything

All source code, design files, Firebase configs, and App Store accounts belong to you from day one. We sign an NDA and a contract before the project starts, not after.

Built to Connect to What You Already Use

Most businesses already have a CRM, an order system, or a database they depend on. We build the API layer so your app talks to those systems directly rather than creating a new silo.

Our iOS & Android App Development Services

Consumer Mobile Apps

Apps your end customers download from the App Store or Google Play. We handle UX flow, onboarding, push notifications, in-app purchases, and everything else that goes into a product people actually keep on their phone.

UI/UX Design for Mobile

Mobile design is not web design scaled down. We design for thumb reach, small screens, and intermittent connectivity, producing Figma prototypes you approve before any code is written.

API and Backend Integration

Whether your app needs to pull from a MySQL database, connect to Stripe for payments, or sync with a third-party logistics platform, we build and document the REST API layer that makes it work.

Firebase and AWS Infrastructure

We set up your backend on Firebase for real-time sync and authentication, or on AWS when your data volume or compliance requirements call for more control. You get infrastructure that scales with your user base.

App Rebuild and Migration

If you have an existing app that is slow, hard to update, or locked inside a platform you no longer trust, we can audit the codebase and migrate it to Flutter with a clear feature parity plan.

App Store Submission and Compliance

Apple and Google both reject apps for reasons that have nothing to do with code quality. We handle submission, respond to review feedback, and get your app live without the back-and-forth you would face doing it solo.

How We Deliver iOS & Android 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.

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1

Discovery & Planning

We spend the first week mapping your app against the workflows it needs to support. If your team uses a spreadsheet to dispatch field technicians today, we sit with that process on a call before we spec anything. The output is a scoped document with features, platform requirements, and a fixed price you approve before we move forward.

2

UI/UX Design

We design in Figma, and you get a full interactive prototype before development starts. This is where most of the real decisions happen: navigation structure, onboarding flow, how the app handles offline states. Changes here cost nothing. Changes after development cost a lot.

3

Development

We build in two-week sprints using Flutter and Dart, with Firebase or AWS on the backend depending on what your app needs. You get a working build after every sprint, delivered to TestFlight or Google Play internal testing so your team can tap through it on a real device.

4

Testing & QA

We run the app against a device matrix that covers the iOS and Android versions your target users are actually running, not just the latest flagships. Performance, edge cases, and API failure states all get tested before the app goes anywhere near the public stores.

5

Launch

We handle the full App Store and Google Play submission process, including store listing copy, screenshots, and responding to any reviewer questions. Most of our submissions get approved on the first pass because we check compliance before submitting, not after a rejection.

6

Support & Growth

After launch, we offer a monthly retainer that covers OS update compatibility, bug fixes with a 48-hour response window, and planned feature additions. You are not locked into it, but most clients stay on because mobile platforms change fast and keeping up solo is genuinely time-consuming.

Why Choose Aneri Developers

Progress While You Sleep

We are based in Gandhinagar, India, which means our team is actively building while your US workday ends. You send feedback at 5 PM Eastern and review completed work the next morning. That time difference is a real productivity advantage on fixed-timeline projects.

Same Engineers, Start to Finish

The developer who writes your authentication module is still on the project when you need a new feature six months later. We do not rotate staff mid-project, which means nobody has to re-learn your codebase on your budget.

Operating Since 2015

We have been building mobile and web software for clients across more than 20 countries for 11 years. Over 500 projects delivered, ranging from simple MVPs to complex platforms with thousands of daily active users.

Communication That Actually Works

You get a dedicated project manager who overlaps with US Eastern and Pacific business hours. We use Slack for day-to-day questions, Loom for async build walkthroughs, and Zoom for weekly reviews. Nothing important gets lost in a 12-hour time gap.

A Small Team That Stays Focused

We are a team of approximately 10 people, which means your project does not get handed off to a junior pool while senior staff chase bigger contracts. The people you talk to in the sales call are the people who build your app.

Contract and NDA on Day One

We sign an NDA before you share any proprietary information, and the project contract specifies that you own 100% of the code, design assets, and App Store accounts. There is no ambiguity about IP after the project ends.

Frequently Asked Questions

Common questions about ios & android app development.

For most business use cases, Flutter is the right call. You get one codebase, lower build cost, and both platforms maintained in sync. The cases where native still wins are apps that depend on very deep hardware integration, like custom Bluetooth peripherals or platform-specific AR frameworks. If you are not sure which applies to you, walk us through what the app needs to do and we will tell you honestly.

A focused MVP with core features typically takes 10 to 16 weeks from signed contract to App Store approval. That timeline assumes a clear scope going in. Projects that expand mid-build take longer, which is why we put a lot of effort into the discovery phase before writing any code.

The fixed price covers everything in the agreed scope: design, development, QA, backend setup, and App Store submission. It does not cover feature additions that come up after the scope is signed. Those are scoped and priced separately before we build them. You always know the cost before any work starts.

Every two weeks, you get a working build on TestFlight and Google Play internal testing that you can tap through on your own device. Weekly Zoom calls cover progress, decisions, and anything blocking the next sprint. You also have direct Slack access to the project manager throughout the week.

It depends on complexity. A focused MVP with one user role and a clean feature set typically runs in the $15,000 to $35,000 range. Apps with multiple user types, complex backend logic, or third-party integrations go higher. We scope every project before quoting, so the number you get reflects what you are actually building.

Yes. We build the REST API layer that connects your app to whatever you already run, whether that is Salesforce, QuickBooks, Shopify, or a custom MySQL database. We document every endpoint so your internal team can work with it after we hand off the code.

iOS and Android both push OS updates that can break existing apps if you are not maintaining them. We offer a post-launch retainer that covers compatibility updates, bug fixes responded to within 48 hours, and planned feature additions. It is optional, but most clients stay on because mobile maintenance is genuinely ongoing work.

We do. Apple's review process in particular rejects apps for reasons that are not obvious the first time you go through it, like missing privacy policy links or insufficient app functionality explanations. We check against both stores' current guidelines before submitting, and the large majority of our submissions are approved without a rejection cycle.

Tell us what your app needs to do

Share your requirements and we will put together a scoped plan with a fixed price. No vague estimates, no open-ended timelines.

Free Consultation
No Commitment
NDA on Day One

Describe Your Project

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

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